CN108258357B - Lithium battery treatment system and treatment process - Google Patents
Lithium battery treatment system and treatment process Download PDFInfo
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- CN108258357B CN108258357B CN201810287272.2A CN201810287272A CN108258357B CN 108258357 B CN108258357 B CN 108258357B CN 201810287272 A CN201810287272 A CN 201810287272A CN 108258357 B CN108258357 B CN 108258357B
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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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 field of waste battery treatment, in particular to a lithium battery treatment system and a lithium battery treatment process, wherein the lithium battery treatment system comprises a shredder, a crusher, a magnetic separator, a crusher, an analyzer, a sorting device, a flow dividing valve, a collector I, a collector II, a collector III, a pulse dust remover I, a pulse dust remover II, a pulse dust remover III, a high-pressure fan I, a high-pressure fan II, a high-pressure fan III, an airflow separator I, an airflow separator II, an airflow separator III, an induced draft fan I and an induced draft fan II; the shredder is sequentially connected with the crusher, the magnetic separator, the crusher, the analyzer, the sorting device, the flow dividing valve, the material collector I, the pulse dust collector I and the high-pressure fan II; the treatment system has reasonable structural design, thorough crushing of the lithium battery, high purity of the recovered powdery substance, small pollution, high efficiency, simple and reasonable treatment process steps, small environmental pollution in the treatment process, high recovery rate and strong practicability.
Description
Technical Field
The invention relates to the field of waste battery treatment, in particular to a lithium battery treatment system and a lithium battery treatment process.
Background
Along with the continuous progress of science and technology, the development of the electronic technology industry is more and more strong, the updating of electronic products is faster and faster, the number of waste lithium batteries is also gradually increased, the waste lithium batteries are discarded at will and can cause great pollution to the environment, the waste mobile phone batteries are intensively treated at present, the waste batteries are usually treated in a deep sea burying way in the early stage, the waste circuit boards are treated in the deep sea burying way for a long time, the environmental pollution is serious, particularly the pollution to sea water and soil is caused, chemical treatment is also often adopted except the deep sea burying way, the components in the mobile phone batteries are corroded by strong acid or strong alkali, and then the dissolution solution is treated to achieve the aim of recycling the mobile phone batteries, however, the pollution of waste water generated by the chemical treatment to water resources is particularly serious, and the drinking water safety of people is influenced.
In order to reduce the pollution to the environment, attempts are made to treat the waste lithium batteries in a physical and mechanical crushing mode, however, the conventional treatment system is not thorough in crushing treatment of the lithium batteries, and substances polluting the environment still exist in discharged materials. The recovered positive and negative electrode powder and metal powder are not completely recovered, so that positive and negative electrode powder and metal powder still exist in residues, the purity of the recovered positive and negative electrode powder and metal powder is low, in addition, when the positive and negative electrode powder and the metal powder are collected, as the induced draft fan is arranged at the front end of the collecting device, the powder material conveying pipeline is provided with an elbow, so that the powder material conveying force is insufficient, the powder material is easy to stay or accumulate on the inner wall of the pipeline, and the separation effect is poor.
Disclosure of Invention
The invention aims to overcome the defects of poor crushing effect, incomplete recovery of anode and cathode materials, incomplete recovery of anode powder and metal powder, low purity and the like of the waste lithium batteries in the prior art, and provides a lithium battery treatment system and a treatment process.
The technical scheme of the invention is realized as follows: a lithium battery processing system comprises a shredder, a crusher, a magnetic separator, a crusher, an analyzer, a sorting device, a diverter valve, a collector I, a collector II, a collector III, a pulse dust collector I, a pulse dust collector II, a pulse dust collector III, a high-pressure fan I, a high-pressure fan II, a high-pressure fan III, an air flow sorter I, an air flow sorter II, an air flow sorter III, an induced draft fan I and an induced draft fan II; the shredder is sequentially connected with the crusher, the magnetic separator, the crusher, the analyzer, the sorting device, the flow dividing valve, the material collector I, the pulse dust collector I and the high-pressure fan II;
the shredder and the crusher are respectively provided with a second outlet, the second outlet of the shredder and the second outlet of the crusher are connected with a dust removing device through a draught fan I, a third outlet is further arranged on the crusher, the third outlet of the crusher is connected with the feeding end of a material collector II, the material collector II is provided with a first outlet and a second outlet, the first outlet of the material collector II is sequentially connected with a pulse dust collector II and a high-pressure fan II, the second outlet of the material collector II is connected with the feeding end of an airflow separator I, a diaphragm paper outlet and a mixture outlet are arranged on the airflow separator I, the mixture outlet of the airflow separator I is connected with a second feeding port arranged on a magnetic separator, a metal powder outlet and a mixture outlet are arranged on the magnetic separator, and the mixture outlet of the magnetic separator is connected with the feeding end of the crusher;
the analyzer is provided with a first outlet and a second outlet, the first outlet of the analyzer is connected with a sorting device, the sorting device comprises an airflow sorting machine II and an airflow sorting machine III which are sequentially connected, the airflow sorting machine II and the airflow sorting machine III are respectively provided with a metal outlet and a positive and negative powder outlet, and the positive and negative powder outlets of the airflow sorting machine II and the airflow sorting machine III are both connected with a feeding end of a flow dividing valve; the second outlet of the analyzer is connected with the feeding end of the material collector III, and the discharging end of the material collector III is sequentially connected with the pulse dust collector III and the high-pressure fan III.
Preferably, a diaphragm paper outlet of the airflow separator I is connected with a feeding end of the air purifier through a draught fan II, and diaphragm paper is discharged through a discharging end of the air purifier.
Preferably, the positive and negative powder outlets are respectively arranged on the collector I and the collector III, and the dust outlets are respectively arranged on the pulse dust remover I, the pulse dust remover II and the pulse dust remover III.
Preferably, the dust removing device comprises an active carbon absorption tower and a water spray tower which are connected in sequence.
Preferably, the shredder includes frame I and the casing I that is located frame I, I upper end of casing is provided with feed inlet I, I both sides of frame are provided with drive arrangement I respectively, I interior both sides of casing are provided with the pivot I and the pivot II of being connected with drive arrangement I respectively, equal circumference distributes in pivot I and the pivot II has the blade, is equipped with the spacer between the adjacent blade, and the crisscross setting of blade in pivot I and the pivot II, I's lower extreme of casing is provided with discharge gate II.
Preferably, the rotating shaft I and the rotating shaft II are arranged in a central symmetry manner, and the driving device I comprises a motor and a speed reducer which are connected through a belt.
Preferably, the crusher comprises a frame II, a shell II and a driving device II, wherein the shell II and the driving device II are arranged on the frame II, a feed inlet II is formed in one side of the upper end of the shell II, a crushing mechanism is arranged in the shell II and comprises a rotating shaft III, a fixed rod and a hammer head, the rotating shaft III is connected with the driving device II through a belt, the fixed rods are uniformly distributed on the circumference of the rotating shaft III and comprise n baffle plates perpendicular to the axis of the rotating shaft III and connecting rods penetrating through the end parts of the baffle plates, and the hammer head is sleeved on the connecting rods; the lower extreme of crushing mechanism is provided with the filter screen, the lower extreme of casing II is provided with the export.
Preferably, the hammer head is positioned on the connecting rod between the adjacent partition plates, a limiting block matched with the width of the hammer head is arranged on the connecting rod, and the distance from the connecting rod to the rotating shaft III is larger than the length of the hammer head.
Preferably, waste lithium batteries enter a shredder to be shredded, the shredded batteries enter a crusher to be crushed, positive and negative pole piece agent diaphragm paper in the battery is scattered in the crushing process, the scattered materials enter a collector II through the suction of a high-pressure fan II, and dust generated in the crushing process is purified through a pulse dust remover II; the material entering the material collector II enters an airflow separator I, dust and diaphragm paper in positive and negative plates are collected by the airflow separator I under the action of airflow and vibration, the dust in the airflow separator I enters a magnetic separator, and the material which is not scattered in a battery in a crusher also enters the magnetic separator;
the method comprises the steps that iron in materials is separated by a magnetic separator under the action of magnetic force, the separated materials enter a pulverizer to be pulverized to 15-25 meshes, the pulverized materials are conveyed to an analyzer, the analyzer carries out winnowing separation on the pulverized materials, positive and negative electrode powder with small specific gravity and metal materials with large specific gravity are separated, the separated positive and negative electrodes are conveyed to a collector III to be collected under the attraction of a high-pressure fan III, dust of the collector III is purified by the pulse purifier III, the metal materials at the separation position of the analyzer enter an airflow separator II to be separated, the airflow separator II carries out separation on copper powder with large specific gravity and aluminum powder with small specific gravity through winnowing, positive and negative electrode powder with small specific gravity enter a diverter valve, the mixture which is not separated in the airflow separator II enters the airflow separator III to be further separated, and the copper powder with large specific gravity and the aluminum powder with small specific gravity are separated through winnowing, and the positive and negative electrode powder with small specific gravity enter the diverter valve;
positive and negative powder in the flow divider enters the collector I for collection under the suction of the high-pressure fan I, and dust enters the pulse dust collector I for purification.
Preferably, dust generated in the shredder and the pulverizer enters the active carbon absorption tower through the induced draft fan I to be absorbed, and air flow absorbed by the active carbon absorption tower enters the water spray tower to be dedusted.
The invention has the following beneficial effects: the invention discloses a lithium battery treatment system and a treatment process, wherein waste lithium batteries are crushed step by a shredder, a crusher and a crusher, so that the waste lithium batteries are crushed thoroughly, the pollution to the environment caused by the fact that residues contain anode and cathode materials is avoided, and the anode powder, the cathode powder and diaphragm paper are separated and recovered by multiple times of separation treatment, so that the purity of the anode powder, the cathode powder, the metal powder and the diaphragm paper is higher, the pollution is reduced, the treatment is thorough, the efficiency is higher, the treatment process is simple and reasonable, the treatment process has no dust pollution, the recovery effect is good, and the practicability is strong.
Drawings
Fig. 1 is a device connection diagram of the present invention.
Fig. 2 is a front view of the shredder of the present invention.
Fig. 3 is a top view of the shredder of the present invention.
Fig. 4 is a side view of the shredder of the present invention.
Fig. 5 is a front view of the crusher of the present invention.
Fig. 6 is a side view of the crusher of the present invention.
In the figure: 1-frame I, 2-casing I, 3-feed inlet I, 4-pivot I, 5-pivot II, 6-motor, 7-speed reducer, 8-blade, 9-spacer, 10-discharge gate II, 11-frame II, 12-casing II, 13-feed inlet II, 14-pivot III, 15-tup, 16-baffle, 17-connecting rod, 18-stopper, 19-filter screen, 20-export.
Detailed Description
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1: 1-6, a lithium battery treatment system comprises a shredder, a crusher, a magnetic separator, a crusher, an analyzer, a sorting device, a flow dividing valve, a collector I, a collector II, a collector III, a pulse dust collector I, a pulse dust collector II, a pulse dust collector III, a high-pressure fan I, a high-pressure fan II, a high-pressure fan III, an air flow sorting machine I, an air flow sorting machine II, an air flow sorting machine III, an induced draft fan I and an induced draft fan II; the shredder is sequentially connected with the crusher, the magnetic separator, the crusher, the analyzer, the sorting device, the flow dividing valve, the material collector I, the pulse dust collector I and the high-pressure fan II; the collector I and the collector III are respectively provided with an anode powder outlet, anode powder and cathode powder collected in the collector I and the collector III are discharged through the anode powder outlet, the pulse dust collector I, the pulse dust collector II and the pulse dust collector III are respectively provided with a dust outlet, the pulse dust collector I, the pulse dust collector II and the pulse dust collector III carry out purification treatment on superfine dust, and the treated superfine dust is discharged through the dust outlet.
The shredder and the crusher are respectively provided with a second outlet, the second outlet of the shredder and the second outlet of the crusher are connected with a dust removing device through a draught fan I, the dust removing device comprises an active carbon absorption tower and a water spray tower which are sequentially connected, dust in the shredder and the crusher enters the active carbon absorption tower through the draught fan I to be absorbed, and waste gas after being absorbed by the active carbon enters the water spray tower to be removed. The crusher is further provided with a third outlet, the third outlet of the crusher is connected with the feeding end of a material collector II, the material collector II is provided with a first outlet and a second outlet, the first outlet of the material collector II is sequentially connected with a pulse dust collector II and a high-pressure fan II, dust outlets are further respectively arranged on the pulse dust collector III, the second outlet of the material collector II is connected with the feeding end of an air flow separator I, the air flow separator I is provided with a diaphragm paper outlet and a mixture outlet, the diaphragm paper outlet of the air flow separator I is connected with the feeding end of an air purifier through a draught fan II, so that air flow with diaphragm paper is purified in the air purifier, impurities on the diaphragm paper are treated, and the treated clean diaphragm paper is discharged through the discharging end of the air purifier. The mixed material outlet of the airflow separator I is connected with a second feeding hole arranged on the magnetic separator, the magnetic separator is provided with a metal powder outlet and a mixed material outlet, the magnetic separator separates metal powder and nonmetal powder under the action of magnetic force, the metal powder is discharged through the metal powder outlet, and the nonmetal powder is connected with the feeding end of the pulverizer through the mixed material outlet;
the analyzer is provided with a first outlet and a second outlet, the analyzer separates metal powder with high specific gravity and positive and negative electrode powder with low specific gravity by utilizing air separation, the first outlet of the analyzer is connected with a sorting device, namely, the metal powder with high specific gravity enters the sorting device, the sorting device comprises an airflow sorter II and an airflow sorter III which are sequentially connected, the airflow sorter II and the airflow sorter III separate the metal powder with high specific gravity and the positive and negative electrode powder with low specific gravity through air separation, the positive and negative electrode powder is separated more thoroughly through twice separation, the airflow sorter II and the airflow sorter III are respectively provided with a metal outlet and a positive and negative electrode powder outlet, and the positive and negative electrode powder outlets of the airflow sorter II and the airflow sorter III are connected with the feeding end of the diverter valve; the second outlet of the analyzer is connected with the feeding end of the collector III, namely positive and negative powder separated in the analyzer enters the collector III, the discharging end of the collector III is sequentially connected with the pulse dust collector III and the high-pressure fan III, the collector III is further provided with positive and negative powder outlets respectively, and the pulse dust collector III is further provided with dust outlets respectively.
The connecting sequence of the material collector I/II/III, the pulse dust collector I/II/III and the high-pressure fan I/II/III can play the following effects and advantages, and the material collector I, the pulse dust collector I and the high-pressure fan I are taken as examples: under the suction of the high-pressure fan I, the high-pressure air flow generates suction and drainage functions on positive and negative electrode powder and dust with smaller specific gravity, an elbow cannot exist in the collector I and the pulse dust collector I, the suction is in front when the high-pressure fan I is positioned at the tail end, the material cannot stay or pile up on the inner wall of the elbow when passing through the elbow, so that the material is more thoroughly collected, and if the high-pressure fan I is positioned at the front end of the collector I, the high-pressure fan I is equivalent to the condition that the material enters the collector I and the pulse dust collector I, the high-pressure fan I blows the material backwards, the blowing force is relatively weakened when the material passes through the elbow, and the material is easy to stay or pile up on the inner wall of the elbow, so that the material is not thoroughly collected; the collector I discharges the positive and negative powder through the powder outlet, the superfine dust is treated and purified by the pulse dust collector I, the discharged gas and dust are prevented from polluting the air, and the treated superfine dust is discharged through the discharge outlet on the pulse dust collector I.
The shredder includes frame I1 and is located the casing I2 in frame I1, and casing I2 upper end is provided with feed inlet I3, and in the material got into casing I2 from feed inlet I3, frame I1 both sides were provided with drive arrangement I respectively, and both sides are provided with pivot I4 and pivot II 5 that are connected with drive arrangement I respectively in the casing I2, pivot I4 and pivot II 5 centrosymmetric setting, drive arrangement I includes motor 6 and speed reducer 7 that connect through the belt. Blade 8 is evenly distributed on circumference on pivot I4 and pivot II 5, be equipped with spacer 9 between the adjacent blade 8, spacer 9 can fix a position blade 8, prevent that blade 8 from rocking about/removing, blade 8 crisscross setting on pivot I4 and the pivot II 5 makes blade 8 on pivot I4 correspond with spacer 9 positions on pivot II 5, makes blade 8 on pivot I4 and the pivot II 5 crisscross each other, is located the lower extreme of casing I1 and is provided with discharge gate II 10, the material after tearing passes through the discharge gate II 10 ejection of compact.
The crusher comprises a frame II 11, a shell II 12 and a driving device II, wherein the shell II 12 and the driving device II are arranged on the frame II 11, a feeding hole II 13 is formed in one side of the upper end of the shell II 12, materials enter the shell II 12 of the crusher through the feeding hole II 13, a crushing mechanism is arranged in the shell II 12 and comprises a rotating shaft III 14, a fixing rod and a hammer 15, the rotating shaft III 14 is connected with the driving device II through a belt, the fixing rod is uniformly distributed on the circumference of the rotating shaft III 14 and comprises n partition plates 16 perpendicular to the axis of the rotating shaft III 14 and a connecting rod 17 penetrating through the end parts of the partition plates 16, the hammer 15 is sleeved on the connecting rod 17, the hammer 15 is positioned on the connecting rod 17 between the adjacent partition plates 16, a limiting block 18 matched with the width of the hammer 15 is arranged on the connecting rod 17, left and right movement of the hammer 15 is prevented, the distance between the connecting rod 17 and the rotating shaft III is larger than the length of the hammer 15, the hammer 15 can circumferentially rotate along the connecting rod 17, the hammer 15 is enabled to beat the materials under the rotation of the rotating shaft III 14, the rotating shaft III, the hammer impact and tear the materials to cause the materials to be crushed under the high-speed rotation of the hammer, the impact and the materials are provided with the fixing rods, the lower ends of the crushing mechanism and the materials are provided with 19, the particles and have a certain particle size and 20, and are separated from the materials through the filter screen 12 and fall into the shell bodies through the filter screen 12 and pass through the filter screen 20, and pass through the filter screen outlet 20.
A lithium battery treatment process, comprising the steps of: waste lithium batteries enter a shredder to be shredded, the shredded batteries enter a crusher to be crushed, dust generated in the shredder and the crusher all enter an activated carbon absorption tower through a draught fan I to be absorbed, and air flow absorbed by the activated carbon absorption tower enters a water spray tower to be dedusted. The diaphragm paper on the positive and negative plates in the battery is scattered in the crushing process, the scattered materials enter a collector II through the suction of a high-pressure fan II, and then dust generated in the crushing process is purified through a pulse dust remover II; the material entering the material collector II enters an airflow separator I, dust and diaphragm paper in positive and negative plates are collected by the airflow separator I under the action of airflow and vibration, the dust in the airflow separator I enters a magnetic separator, and the material which is not scattered in a battery in a crusher also enters the magnetic separator;
the method comprises the steps that iron in materials is separated by a magnetic separator under the action of magnetic force, the separated materials enter a pulverizer to be pulverized to 15-25 meshes, the pulverized materials are conveyed to an analyzer, the analyzer carries out winnowing separation on the pulverized materials, positive and negative electrode powder with small specific gravity and metal materials with large specific gravity are separated, the separated positive and negative electrodes are conveyed to a collector III to be collected under the attraction of a high-pressure fan III, dust of the collector III is purified by the pulse purifier III, the metal materials separated by the analyzer enter an airflow separator II to be separated, the airflow separator II sorts copper powder with large specific gravity and aluminum powder and the positive and negative electrode powder with small specific gravity by winnowing, some positive and negative electrode powder is necessarily doped in the copper powder with large specific gravity and the aluminum powder, the positive and negative electrode powder with small specific gravity enter a diverter valve, the material with large specific gravity in the airflow separator II is further separated by the airflow separator III, the positive and negative electrode powder with large specific gravity are separated again by winnowing, the positive and negative electrode powder with small specific gravity enter the diverter valve, and the metal powder with large specific gravity is discharged through a metal outlet.
Positive and negative powder in the flow divider enters the collector I for collection under the suction of the high-pressure fan I, and dust enters the pulse dust collector I for purification.
The process provided by the invention has the advantages that the separator paper, the anode powder, the cathode powder and the metal powder are separated and recycled through multiple separation, and the purity of the obtained separator paper, anode powder, cathode powder and metal powder is very high, so that the separator paper, the anode powder, the cathode powder and the metal powder can be directly recycled for reuse.
The metal and the anode powder in the waste lithium battery are recycled through the combined processes of shredding, crushing, airflow sorting and the like.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. A lithium battery processing system, characterized in that: the device comprises a shredder, a crusher, a magnetic separator, a crusher, an analyzer, a sorting device, a flow dividing valve, a collector I, a collector II, a collector III, a pulse dust collector I, a pulse dust collector II, a pulse dust collector III, a high-pressure fan I, a high-pressure fan II, a high-pressure fan III, an air flow sorting machine I, an air flow sorting machine II, an air flow sorting machine III, an induced draft fan I and an induced draft fan II; the shredder is sequentially connected with the crusher, the magnetic separator, the crusher, the analyzer, the sorting device, the flow dividing valve, the material collector I, the pulse dust collector I and the high-pressure fan II;
the shredder and the crusher are respectively provided with a second outlet, the second outlet of the shredder and the second outlet of the crusher are connected with a dust removing device through a draught fan I, a third outlet is further arranged on the crusher, the third outlet of the crusher is connected with the feeding end of a material collector II, the material collector II is provided with a first outlet and a second outlet, the first outlet of the material collector II is sequentially connected with a pulse dust collector II and a high-pressure fan II, the second outlet of the material collector II is connected with the feeding end of an airflow separator I, a diaphragm paper outlet and a mixture outlet are arranged on the airflow separator I, the mixture outlet of the airflow separator I is connected with a second feeding port arranged on a magnetic separator, a metal powder outlet and a mixture outlet are arranged on the magnetic separator, and the mixture outlet of the magnetic separator is connected with the feeding end of the crusher;
the analyzer is provided with a first outlet and a second outlet, the first outlet of the analyzer is connected with a sorting device, the sorting device comprises an airflow sorting machine II and an airflow sorting machine III which are sequentially connected, the airflow sorting machine II and the airflow sorting machine III are respectively provided with a metal outlet and a positive and negative powder outlet, and the positive and negative powder outlets of the airflow sorting machine II and the airflow sorting machine III are both connected with a feeding end of a flow dividing valve; the second outlet of the analyzer is connected with the feeding end of a material collector III, and the discharging end of the material collector III is sequentially connected with a pulse dust collector III and a high-pressure fan III;
the diaphragm paper outlet of the airflow separator I is connected with the feeding end of the air purifier through a draught fan II, and diaphragm paper is discharged through the discharging end of the air purifier;
the device is characterized in that positive and negative powder outlets are further formed in the material collector I and the material collector III respectively, and dust outlets are further formed in the pulse dust collector I, the pulse dust collector II and the pulse dust collector III respectively.
2. A lithium battery processing system according to claim 1, wherein: the dust removing device comprises an active carbon absorption tower and a water spray tower which are connected in sequence.
3. A lithium battery processing system according to claim 1, wherein: the shredder comprises a frame I and a shell I positioned on the frame I, wherein a feed inlet I is formed in the upper end of the shell I, driving devices I are respectively arranged on two sides of the frame I, a rotating shaft I and a rotating shaft II which are connected with the driving devices I are respectively arranged on two sides in the shell I, blades are distributed on the rotating shaft I and the rotating shaft II in a circumferential manner, spacers are arranged between adjacent blades, the blades on the rotating shaft I and the rotating shaft II are arranged in a staggered mode, and a discharge outlet II is formed in the lower end of the shell I.
4. A lithium battery processing system according to claim 3, wherein: the rotary shaft I and the rotary shaft II are arranged in a central symmetry mode, and the driving device I comprises a motor and a speed reducer which are connected through a belt.
5. A lithium battery processing system according to claim 1, wherein: the crusher comprises a frame II, a shell II and a driving device II, wherein the shell II and the driving device II are arranged on the frame II, a feed inlet II is formed in one side of the upper end of the shell II, a crushing mechanism is arranged in the shell II and comprises a rotating shaft III, a fixing rod and a hammer head, the rotating shaft III is connected with the driving device II through a belt, the fixing rods are uniformly distributed on the circumference of the rotating shaft III and comprise n baffle plates perpendicular to the axis of the rotating shaft III and connecting rods penetrating through the end parts of the baffle plates, and the hammer head is sleeved on the connecting rods; the lower extreme of crushing mechanism is provided with the filter screen, the lower extreme of casing II is provided with the export.
6. A lithium battery processing system according to claim 5, wherein: the hammer head is located on the connecting rod between the adjacent partition boards, a limiting block matched with the width of the hammer head is arranged on the connecting rod, and the distance from the connecting rod to the rotating shaft III is larger than the length of the hammer head.
7. A process of treating a lithium battery treatment system according to claim 1, wherein: the method comprises the following steps:
the waste lithium batteries enter a shredder to be shredded, the shredded batteries enter a crusher to be crushed, positive and negative pole piece agent diaphragm paper in the battery is scattered in the crushing process, the scattered materials enter a collector II through the suction of a high-pressure fan II, and dust generated in the crushing process is purified through a pulse dust collector II; the material entering the material collector II enters an airflow separator I, dust and diaphragm paper in positive and negative plates are collected by the airflow separator I under the action of airflow and vibration, the dust in the airflow separator I enters a magnetic separator, and the material which is not scattered in a battery in a crusher also enters the magnetic separator;
the method comprises the steps that iron in materials is separated by a magnetic separator under the action of magnetic force, the separated materials enter a pulverizer to be pulverized to 15-25 meshes, the pulverized materials are conveyed to an analyzer, the analyzer carries out winnowing separation on the pulverized materials, positive and negative electrode powder with small specific gravity and metal materials with large specific gravity are separated, the separated positive and negative electrodes are conveyed to a collector III to be collected under the attraction of a high-pressure fan III, dust of the collector III is purified by the pulse purifier III, the metal materials separated by the analyzer enter an airflow separator II to be separated, the airflow separator II separates copper powder with large specific gravity and aluminum powder with small specific gravity through winnowing, positive and negative electrode powder with small specific gravity enter a diverter valve, the mixture which is not separated in the airflow separator II enters the airflow separator III to be further separated, and the copper powder with large specific gravity and the aluminum powder with small specific gravity enter the diverter valve through winnowing;
positive and negative powder in the flow divider enters the collector I for collection under the suction of the high-pressure fan I, and dust enters the pulse dust collector I for purification.
8. The process of claim 7, wherein the lithium battery processing system comprises: dust generated in the shredder and the pulverizer all enter the active carbon absorption tower through the induced draft fan I to be absorbed, and airflow absorbed by the active carbon absorption tower enters the water spray tower to be dedusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287272.2A CN108258357B (en) | 2018-03-31 | 2018-03-31 | Lithium battery treatment system and treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287272.2A CN108258357B (en) | 2018-03-31 | 2018-03-31 | Lithium battery treatment system and treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108258357A CN108258357A (en) | 2018-07-06 |
| CN108258357B true CN108258357B (en) | 2023-10-17 |
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| CN113745684A (en) * | 2021-08-25 | 2021-12-03 | 金川集团股份有限公司 | Method for recycling anode material of waste lithium iron phosphate battery |
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