CN118320918B - Charged crushing equipment for lithium battery - Google Patents
Charged crushing equipment for lithium battery Download PDFInfo
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- CN118320918B CN118320918B CN202410777979.7A CN202410777979A CN118320918B CN 118320918 B CN118320918 B CN 118320918B CN 202410777979 A CN202410777979 A CN 202410777979A CN 118320918 B CN118320918 B CN 118320918B
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- rotating wheel
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- liquid
- lithium battery
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 238000003860 storage Methods 0.000 claims abstract description 19
- 238000010992 reflux Methods 0.000 claims abstract description 14
- 150000001335 aliphatic alkanes Chemical class 0.000 claims abstract description 6
- 239000002480 mineral oil Substances 0.000 claims abstract description 6
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 20
- 230000002829 reductive effect Effects 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000007654 immersion Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- 239000000126 substance Substances 0.000 description 8
- 239000002893 slag Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000000053 physical method Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010170 biological method Methods 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 229940093915 gynecological organic acid Drugs 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910001386 lithium phosphate Inorganic materials 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
- Battery Electrode And Active Subsutance (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a lithium battery charged crushing device, which comprises: the crushing machine comprises a crushing machine frame, a crushing assembly and a reflux pump set, wherein a liquid storage tank is arranged at the top end of the crushing machine frame, a driving motor and a coaxial driving assembly are fixedly arranged on the inner side of the crushing machine frame, the crushing assembly comprises a crushing machine case, an outer rotating wheel and an inner crushing wheel which are rotatably arranged on the inner side of the crushing machine case, the driving motor and the coaxial driving assembly are used for driving the outer rotating wheel and the inner crushing wheel to reversely rotate, and the outer rotating wheel eccentrically rotates on the inner side of the inner crushing wheel. According to the invention, by arranging the novel liquid immersion type lithium battery crushing structure, inert liquids such as mineral oil, transformer oil, fluorinated alkane or hydrofluoroether and the like in the liquid storage tank are used for participating in the crushing process, and the electrochemical activity of the lithium battery is reduced, the intensity of internal reaction is reduced, and the possibility of contact between sparks and air generated in the battery crushing process is reduced, so that the charged crushing is realized, and the working efficiency is improved by liquid coverage.
Description
Technical Field
The invention relates to the technical field of lithium battery recovery, in particular to lithium battery charged crushing equipment.
Background
The recovery of current old and useless lithium cell mainly aims at the recovery of battery positive electrode material, and the kind of positive electrode material mainly includes: lithium cobaltate, lithium manganate, ternary and ferric lithium phosphate, and the like. The recovery method of the waste lithium battery mainly comprises three main types of physical methods, chemical methods and biological methods. The physical method is mainly a crushing flotation method and a mechanical grinding method, the chemical method is divided into pyrometallurgy and hydrometallurgy, and the biological method is currently in a grinding stage and is not used in industrial production, so the physical method and the chemical method are generally matched in the actual recycling process. The most commonly used recovery methods of lithium ion batteries in the prior art include pyrometallurgical recovery and physical-hydrometallurgical recovery. The physical method-wet recovery is to separate the plastic, steel shell, aluminum, copper, active black powder and the like in the waste lithium ion battery after the material separation operations such as discharging, manual separation, crushing, winnowing, magnetic separation, screening, active material stripping and the like. And then hydrochloric acid, sulfuric acid and nitric acid are matched with a reducing agent, or reducing organic acids such as citric acid, malic acid, gluconic acid and ascorbic acid are directly used for leaching the nickel, cobalt, manganese and lithium elements in the active black powder. The leaching solution can be used for preparing ternary precursors after impurity removal, or nickel, cobalt, manganese and lithium element products can be respectively prepared after extraction and separation. The method has the advantages that the method can recycle the whole components of the waste ternary battery, and the recovery rate of the metal elements is high.
The traditional physical breaking method needs to discharge the battery, but the battery is still short-circuited, fire or explosion risk exists in the process. In the chemical leaching process, potential safety hazards exist in breaking and disassembling the battery. In the chemical recovery process, a large amount of acidic and reductive chemical solutions are used, so that the generated waste liquid is difficult to treat, and the environment is at a high pollution risk. The pyrometallurgical law generates a large amount of waste gas, affects the air quality physical method-hydrometallurgical recovery process, requires multiple processes (such as discharging, manual splitting, crushing, winnowing, magnetic separation, screening and the like), involves a large amount of equipment and manpower, and increases the complexity and cost of operation. Recovery efficiency and recovery rate are limited by equipment and process conditions, especially the difficulty of thoroughly breaking up the cells by physical methods, and chemical laws are limited by the concentration and reaction time of the leachate. Most recovery processes require manual operation, have low automation levels, result in inefficiency and are prone to operational errors. In view of the above, the present invention provides a lithium battery charged crushing apparatus, which solves the existing problems and aims to solve the problems and improve the practical value by the technology.
Disclosure of Invention
The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the invention is as follows: a lithium battery charged crushing apparatus comprising: the crushing machine comprises a crushing machine frame, a crushing assembly and a reflux pump set, wherein a liquid storage tank is arranged at the top end of the crushing machine frame, a driving motor and a coaxial driving assembly are fixedly arranged at the inner side of the crushing machine frame, the crushing assembly comprises a crushing machine case, an outer rotating wheel and an inner crushing wheel which are rotatably arranged at the inner side of the crushing machine case, the driving motor and the coaxial driving assembly are used for driving the outer rotating wheel and the inner crushing wheel to reversely rotate, the outer rotating wheel eccentrically rotates at the inner side of the inner crushing wheel, a bearing door is arranged on the surface of the crushing machine case, a slip ring which is in sliding abutting connection with the end part of the inner crushing wheel is arranged at one side of the bearing door, and inert liquid is filled in the liquid storage tank and the crushing machine case;
The reflux pump group comprises a pump box and a rotating wheel disc rotatably arranged on the inner side of the pump box, a liquid cavity is formed in the inner side of the pump box, the rotating wheel disc is eccentrically arranged on the inner side of the liquid cavity, a plurality of paddle boards which are tangentially arranged and are in sliding butt with the inner wall of the liquid cavity are slidably arranged on the surface of the rotating wheel disc, and an elastic piece is arranged on the inner side of the rotating wheel disc.
The present invention may be further configured in a preferred example to: the one end of outer rotor and interior broken wheel is fixedly connected with first axostylus axostyle respectively, first axostylus axostyle is skew with the axle center of outer rotor, the surface of outer rotor and interior broken wheel all is equipped with a plurality of broken edges that are radial arrangement, the broken edge density in outer rotor surface is greater than the broken edge density in interior broken wheel surface.
The present invention may be further configured in a preferred example to: the coaxial driving assembly comprises a first transmission tooth, a second transmission tooth and a reverse driving tooth rotatably arranged on the inner side of the crusher frame, wherein the first transmission tooth and the second transmission tooth are fixedly sleeved on the surfaces of the second shaft rod and the first shaft rod respectively, and the first transmission tooth and the second transmission tooth are oppositely arranged and are in transmission engagement with the surfaces of the reverse driving tooth.
The present invention may be further configured in a preferred example to: the second shaft rod is rotatably sleeved on the outer side of the first shaft rod, and one end of the first shaft rod is in transmission connection with the output end of the driving motor.
The present invention may be further configured in a preferred example to: the surface fixed mounting of revolving bearing door has the hopper, the bottom fixed mounting of breaker case has a ejection of compact winch, the bottom of reservoir is equipped with the circulation valve with breaker case and inboard intercommunication of hopper, the circulation valve is electromagnetic control valve structure, the inside level sensor that is equipped with of breaker case and output is connected with the input transmission of circulation valve.
The present invention may be further configured in a preferred example to: the discharging winch is obliquely arranged, a return pipe communicated with the return pump set is arranged at the oblique bottom end of the discharging winch, and a guide pipe communicated with the circulation valve is arranged at the liquid outlet end of the return pump set.
The present invention may be further configured in a preferred example to: and a dreg gap is arranged between one side of the rotating wheel disc and the inner wall of the liquid cavity, and is larger than the maximum gap width of the outer rotating wheel and the inner crushing wheel.
The present invention may be further configured in a preferred example to: the inert liquid in the liquid storage tank is one of mineral oil, transformer oil, fluorinated alkane or hydrofluoroether.
The beneficial effects obtained by the invention are as follows:
1. According to the invention, by arranging the novel liquid immersion type lithium battery crushing structure, inert liquids such as mineral oil, transformer oil, fluorinated alkane or hydrofluoroether and the like in the liquid storage tank are used for participating in the crushing process, and the electrochemical activity of the lithium battery is reduced, the intensity of internal reaction is reduced, and the possibility of contact between sparks and air generated in the battery crushing process is reduced, so that the charged crushing is realized, and the working efficiency is improved by liquid coverage.
2. According to the invention, the novel double-wheel crushing assembly is arranged, the shearing and crushing of the battery with the crushing are realized by utilizing the bidirectional rotation of the outer rotating wheel and the inner crushing wheel, the battery gravity or centrifugal kinetic energy moves outwards and shears through the relative movement gap of the outer rotating wheel and the inner crushing wheel, and the eccentric rotation of the inner crushing wheel at the inner side of the outer rotating wheel further improves the crushing degree of the materials.
3. According to the invention, the crushed materials are lifted and conveyed through the discharging winch, the inert liquid is automatically separated and is subjected to backflow spraying through the backflow pump set, the inert liquid is recycled, the cost is reduced, and the novel backflow pump set is internally provided with the dreg gap for crushing dreg to pass through, so that the stability of a backflow circulation system is effectively improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic view of a coaxial drive assembly according to one embodiment of the present invention;
FIG. 4 is a schematic illustration of the outer rotor and inner breaker wheel drive configuration of an embodiment of the present invention;
FIG. 5 is a schematic illustration of the outer rotor and inner crushing rotor configuration of one embodiment of the present invention;
FIG. 6 is a schematic view of the structure of a rolling door and inner crushing wheel of one embodiment of the present invention;
Fig. 7 is a schematic view of the internal structure of a reflux pump set according to an embodiment of the present invention.
Reference numerals:
100. a breaker frame; 110. a liquid storage tank; 120. a driving motor; 130. a coaxial drive assembly; 111. a flow-through valve; 131. a first drive tooth; 132. a second drive tooth; 133. reversing the drive teeth;
200. a crushing assembly; 210. a breaker box; 220. an outer rotating wheel; 230. an inner crushing wheel; 211. a revolving door; 212. a discharging winch drum; 213. a hopper; 214. a slip ring; 221. a first shaft; 231. a second shaft;
300. A return pump set; 310. a pump box; 320. a rotating disc; 330. a paddle board; 311. a liquid chamber; 312. a dreg gap; 331. an elastic member.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
It is to be understood that this description is merely exemplary in nature and is not intended to limit the scope of the present invention.
Some embodiments of the present invention provide a lithium battery charged crushing apparatus, which is described below with reference to the accompanying drawings.
Referring to fig. 1 to 7, the present invention provides a lithium battery charged crushing apparatus, comprising: the crushing machine comprises a crushing machine frame 100, a crushing assembly 200 and a reflux pump set 300, wherein a liquid storage tank 110 is arranged at the top end of the crushing machine frame 100, a driving motor 120 and a coaxial driving assembly 130 are fixedly arranged on the inner side of the crushing machine frame 100, the crushing assembly 200 comprises a crushing machine case 210, an outer rotating wheel 220 and an inner crushing wheel 230 which are rotatably arranged on the inner side of the crushing machine case 210, the driving motor 120 and the coaxial driving assembly 130 are used for driving the outer rotating wheel 220 and the inner crushing wheel 230 to reversely rotate, the outer rotating wheel 220 eccentrically rotates on the inner side of the inner crushing wheel 230, a bearing door 211 is arranged on the surface of the crushing machine case 210, a slip ring 214 which is in sliding abutting connection with the end part of the inner crushing wheel 230 is arranged on one side of the bearing door 211, and inert liquid is filled in the liquid storage tank 110 and the inside of the crushing machine case 210;
the reflux pump set 300 comprises a pump box 310 and a rotating wheel disc 320 rotatably installed on the inner side of the pump box 310, a liquid cavity 311 is formed in the inner side of the pump box 310, the rotating wheel disc 320 is eccentrically arranged on the inner side of the liquid cavity 311, a plurality of paddles 330 which are tangentially arranged and slidably abutted to the inner wall of the liquid cavity 311 are slidably installed on the surface of the rotating wheel disc 320, and an elastic piece 331 is arranged on the inner side of the rotating wheel disc 320.
In this embodiment, one end of the outer rotor 220 and one end of the inner rotor 230 are fixedly connected with a first shaft rod 221 and a second shaft rod 231 respectively, the first shaft rod 221 deviates from the axis of the outer rotor 220, the surfaces of the outer rotor 220 and the inner rotor 230 are provided with a plurality of radially arranged crushing blades, and the surface crushing blade density of the outer rotor 220 is greater than that of the inner rotor 230.
Specifically, the passing battery is sheared and crushed by the rotation of the outer and inner crushing wheels 220 and 230, and the outer wheel 220 eccentrically rotates inside the inner crushing wheel 230 to increase the shearing and crushing degree.
In this embodiment, the coaxial drive assembly 130 comprises a first gear tooth 131, a second gear tooth 132 and a reversing gear tooth 133 rotatably mounted inside the crusher frame 100, the first gear tooth 131 and the second gear tooth 132 are fixedly sleeved on the surfaces of the second shaft 231 and the first shaft 221 respectively, and the first gear tooth 131 and the second gear tooth 132 are oppositely arranged and are in driving engagement with the surfaces of the reversing gear tooth 133.
In particular, a coaxial counter drive between the second shaft 231 and the first shaft 221 is achieved with the counter drive teeth 133.
In this embodiment, the second shaft 231 is rotatably sleeved on the outer side of the first shaft 221, and one end of the first shaft 221 is in transmission connection with the output end of the driving motor 120.
In this embodiment, a hopper 213 is fixedly mounted on the surface of the bearing door 211, a discharging winch 212 is fixedly mounted at the bottom end of the crusher case 210, a flow valve 111 communicated with the crusher case 210 and the inner side of the hopper 213 is arranged at the bottom end of the liquid storage tank 110, the flow valve 111 is of an electromagnetic control valve structure, a liquid level sensor is arranged in the crusher case 210, and an output end of the liquid level sensor is in transmission connection with an input end of the flow valve 111.
Specifically, the circulation valve 111 is automatically controlled under the monitoring of the liquid level sensor in the crusher case 210, so that the release of the liquid in the liquid storage tank 110 is realized, and the liquid level in the crusher case 210 is maintained.
In this embodiment, the tapping reamer spindle 212 is arranged obliquely and the oblique bottom end is provided with a return pipe communicating with the return pump set 300, and the liquid outlet end of the return pump set 300 is provided with a conduit communicating with the flow valve 111.
Specifically, the liquid flow is returned under the delivery of the return pump set 300, so that the solid-liquid separation in the discharging winch 212 is performed, and the inert liquid is recycled.
In this embodiment, a dross gap 312 is provided between one side of the rotor disc 320 and the inner wall of the liquid chamber 311, the dross gap 312 being larger than the maximum gap width of the outer rotor 220 and the inner crushing wheel 230.
Specifically, a large amount of slag is generated in the crushing cells of the outer rotor 220 and the inner crushing wheel 230, part of the slag can move along with the liquid flow, and the slag can be allowed to pass through the liquid cavity 311 by the slag gap 312, so that the abrasion and blockage of the reflux pump set 300 caused by slag in the reflux liquid are avoided.
In this embodiment, the inert liquid inside the liquid storage tank 110 is one of mineral oil, transformer oil, fluorinated alkane, or hydrofluoroether.
In particular, the material has good heat conductivity and chemical inertness, does not react with battery materials, soaks the battery, and can quickly cool and reduce the activity of the battery.
The working principle and the using flow of the invention are as follows:
In the charged crushing of lithium batteries, inert liquid is filled in the crusher frame 100, one of mineral oil, transformer oil, fluorinated alkane or hydrofluoroether is selected as the inert liquid according to the actual production and the cost reduction requirement, the inert liquid in the crusher case 210 is filled and immersed on the top surface of the inner crushing wheel 230, the materials are fed in the hopper 213, the batteries enter the rotating outer rotating wheel 220 and the inner crushing wheel 230, the coaxial reverse rotation of the first shaft rod 221 and the second shaft rod 231 is realized through the transmission of the coaxial driving assembly 130 under the driving of the driving motor 120, the inner crushing wheel 230 is driven to rotate, the outer rotating wheel 220 eccentrically rotates in the inner crushing wheel 230, the battery materials are sheared in the inner crushing wheel 230 under the action of gravity or centrifugation through the relative movement gap of the outer rotating wheel 220 and the inner crushing wheel 230, and the eccentric rotation of the inner crushing wheel 230 inside the outer rotating wheel 220 further improves the crushing degree of the materials;
The electrochemical activity of the lithium battery is reduced by soaking the lithium battery in specific liquid, the intensity of internal reaction is reduced, the possibility of contact between sparks and air generated in the crushing process of the battery is reduced by liquid coverage, the possibility of ignition is reduced, charged crushing is realized, after the soaked liquid is sunk into the discharging winch 212 along with crushed materials, the material liquid is pumped back to the inside of the circulation valve 111 by the working pump of the reflux pump set 300, enters the discharging winch 212 from the port of the circulation valve 111 to carry out pre-soaking and wrapping treatment on the battery and enters the crusher case 210 along with the battery, when the liquid amount of inert liquid in the crusher case 210 is reduced due to the output of crushed materials, the liquid storage tank 110 releases the internal liquid storage, the page is always kept above the top surface of the internal crushing wheel 230, and the complete soaking effect of the battery is ensured.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (4)
1. A lithium battery charged crushing apparatus, comprising: the crushing machine comprises a crushing machine frame (100), a crushing assembly (200) and a reflux pump set (300), wherein a liquid storage tank (110) is arranged at the top end of the crushing machine frame (100), a driving motor (120) and a coaxial driving assembly (130) are fixedly arranged on the inner side of the crushing machine frame (100), the crushing assembly (200) comprises a crushing machine case (210) and an outer rotating wheel (220) and an inner crushing wheel (230) which are rotatably arranged on the inner side of the crushing machine case (210), the driving motor (120) and the coaxial driving assembly (130) are used for driving the outer rotating wheel (220) and the inner crushing wheel (230) to reversely rotate, the inner side of the inner crushing wheel (230) eccentrically rotates, a bearing door (211) is arranged on the surface of the crushing machine case (210), a slip ring (214) which is in sliding contact with the end part of the inner crushing wheel (230) is arranged on one side of the bearing door (211), and inert liquid is filled in the liquid storage tank (110) and the crushing machine case (210);
The surface of the bearing door (211) is fixedly provided with a hopper (213), the bottom end of the crusher case (210) is fixedly provided with a discharging winch (212), the bottom end of the liquid storage tank (110) is provided with a circulation valve (111) communicated with the inner sides of the crusher case (210) and the hopper (213), the circulation valve (111) is of an electromagnetic control valve structure, the inside of the crusher case (210) is provided with a liquid level sensor, and the output end of the liquid storage tank is in transmission connection with the input end of the circulation valve (111);
The reflux pump set (300) comprises a pump box (310) and a rotating wheel disc (320) rotatably arranged on the inner side of the pump box (310), a liquid cavity (311) is formed in the inner side of the pump box (310), the rotating wheel disc (320) is eccentrically arranged on the inner side of the liquid cavity (311), a plurality of paddles (330) which are tangentially arranged and the other end of which is in sliding contact with the inner wall of the liquid cavity (311) are slidably arranged on the surface of the rotating wheel disc (320), and an elastic piece (331) is arranged on the inner side of the rotating wheel disc (320);
The discharging winch drum (212) is obliquely arranged, a reflux pipe communicated with the reflux pump set (300) is arranged at the bottom end of the inclination, a guide pipe communicated with the circulation valve (111) is arranged at the liquid outlet end of the reflux pump set (300), a dreg gap (312) is formed between one side of the rotating wheel disc (320) and the inner wall of the liquid cavity (311), the dreg gap (312) is larger than the maximum gap width of the outer rotating wheel (220) and the inner crushing wheel (230), and inert liquid in the liquid storage tank (110) is one of mineral oil, transformer oil, fluorinated alkane or hydrofluoroether.
2. The lithium battery charged crushing device according to claim 1, wherein one ends of the outer rotating wheel (220) and the inner crushing wheel (230) are fixedly connected with a first shaft lever (221) and a second shaft lever (231) respectively, the first shaft lever (221) is deviated from the axis of the outer rotating wheel (220), a plurality of crushing blades which are radially arranged are arranged on the surfaces of the outer rotating wheel (220) and the inner crushing wheel (230), and the surface crushing blade density of the outer rotating wheel (220) is larger than that of the inner crushing wheel (230).
3. A lithium battery charged crushing device according to claim 2, characterized in that the coaxial drive assembly (130) comprises a first transmission tooth (131), a second transmission tooth (132) and a reversing drive tooth (133) rotatably mounted inside the crusher frame (100), the first transmission tooth (131) and the second transmission tooth (132) are fixedly sleeved on the surfaces of the second shaft (231) and the first shaft (221), respectively, and the first transmission tooth (131) and the second transmission tooth (132) are oppositely arranged and are in driving engagement with the surfaces of the reversing drive tooth (133).
4. The lithium battery charged crushing device according to claim 2, wherein the second shaft rod (231) is rotatably sleeved on the outer side of the first shaft rod (221), and one end of the first shaft rod (221) is in transmission connection with the output end of the driving motor (120).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111697281A (en) * | 2020-06-11 | 2020-09-22 | 威立雅新能源科技(江门)有限公司 | Electrified breaker of waste battery |
| CN117019826A (en) * | 2023-07-05 | 2023-11-10 | 安徽海创循环科技有限公司 | Rotary kiln with crushing function for recycling waste lithium batteries |
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| IT201800007426A1 (en) * | 2018-07-23 | 2020-01-23 | LITHIUM BATTERY DISPOSAL AND LITHIUM RECOVERY PLANT | |
| CN218925639U (en) * | 2022-11-03 | 2023-04-28 | 湖南金源新材料循环利用有限公司 | Charged crushing device capable of scattering agglomerated materials |
| CN117244622A (en) * | 2023-09-04 | 2023-12-19 | 广东联之冠环保科技有限公司 | Lithium battery underwater crushing mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697281A (en) * | 2020-06-11 | 2020-09-22 | 威立雅新能源科技(江门)有限公司 | Electrified breaker of waste battery |
| CN117019826A (en) * | 2023-07-05 | 2023-11-10 | 安徽海创循环科技有限公司 | Rotary kiln with crushing function for recycling waste lithium batteries |
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