CN113851743A - Dry discharging method and discharging device for waste lithium battery - Google Patents
Dry discharging method and discharging device for waste lithium battery Download PDFInfo
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- CN113851743A CN113851743A CN202111080350.XA CN202111080350A CN113851743A CN 113851743 A CN113851743 A CN 113851743A CN 202111080350 A CN202111080350 A CN 202111080350A CN 113851743 A CN113851743 A CN 113851743A
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 76
- 238000007599 discharging Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000002699 waste material Substances 0.000 title claims abstract description 25
- 239000004576 sand Substances 0.000 claims abstract description 59
- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 18
- 239000000498 cooling water Substances 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- -1 silicon-magnesium-aluminum Chemical compound 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 3
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 abstract description 6
- 239000002351 wastewater Substances 0.000 abstract description 6
- 125000004122 cyclic group Chemical group 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 208000028659 discharge Diseases 0.000 description 43
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 239000012266 salt solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 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
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 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
- 238000004880 explosion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010926 waste battery Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Primary Cells (AREA)
Abstract
The invention discloses a dry discharging method and a discharging device for waste lithium batteries, wherein a lithium battery and conductive sand are mixed and placed in a conductive cylinder to drive the conductive cylinder to rotate, the mixture of the lithium battery and the conductive sand runs from a feeding hole to a discharging hole of the conductive cylinder, in the running process, the conductive sand connects the positive electrode and the negative electrode of the lithium battery to form a discharging loop, and heat generated in the discharging process of the lithium battery is discharged by a heat dissipation device of the conductive cylinder; the in-process that electrically conductive sand discharged to the lithium cell can not produce substances such as waste water, waste gas of polluted environment, and electrically conductive sand can cyclic utilization moreover, and the heat that the in-process that discharges produced is discharged by heat abstractor and is gone away, does not have the potential safety hazard.
Description
Technical Field
The invention relates to the technical field of lithium battery discharge, in particular to a dry-type discharge method for a waste lithium battery and a discharge device related to the discharge method.
Background
Lithium batteries have the advantages of high energy density, long cycle life, no memory effect, etc., and the usage amount thereof has increased year by year since commercialization. The average service life of lithium ions is 2-3 years, the number of the lithium batteries after retirement is huge, and the number of the lithium batteries is increased year by year at present. Meanwhile, the lithium battery contains poisonous lithium hexafluorophosphate and various valuable metals such as copper, aluminum, nickel, cobalt, manganese and the like. If the recycling treatment is improper, the environment and the personal safety are greatly damaged, and resources are greatly wasted. Therefore, the harmless recovery of the lithium battery is a necessary condition for the sustainable development of the lithium battery industry.
The lithium battery after being retired still has certain residual electric quantity, and the lithium battery must be subjected to discharge treatment before crushing and separating, otherwise, explosion danger can occur when the waste lithium battery is crushed. At present conventional discharge mode adopts the salt solution to soak for a long time, and this kind of discharge mode discharge time is long, influences the recovery processing efficiency of useless lithium cell, but also can produce a large amount of waste water, waste gas, the polluted environment, and the salt solution of having soaked the lithium cell can only discharge safely after needing secondary treatment, produces secondary pollution easily.
Disclosure of Invention
The invention aims to solve the technical problem of providing a dry discharging method of a waste lithium battery, which has no pollution and high discharging efficiency.
In order to solve the technical problems, the technical scheme of the invention is as follows: a dry discharging method for waste lithium batteries is characterized in that a lithium battery and conductive sand are mixed and placed in a conductive cylinder to drive the conductive cylinder to rotate, the mixture of the lithium battery and the conductive sand runs from a feed inlet to a discharge outlet of the conductive cylinder, in the running process, the conductive sand connects a positive electrode and a negative electrode of the lithium battery to form a discharging loop, and heat generated in the discharging process of the lithium battery is discharged by a heat dissipation device of the conductive cylinder.
As a preferred technical scheme, the conductive sand comprises silicon-magnesium-aluminum alloy or silicon-iron alloy.
As a preferred technical scheme, the outer diameter of the conductive sand is 3-15 mm.
As a preferable technical scheme, the advancing speed of the mixture of the lithium battery and the conductive sand in the conductive cylinder is 0.05-0.2 m/s.
According to the technical scheme, the dry discharging method of the waste lithium battery comprises the steps that the lithium battery and the conductive sand are mixed and placed into the conductive cylinder, the conductive cylinder is driven to rotate, the mixture of the lithium battery and the conductive sand runs from a feeding hole to a discharging hole of the conductive cylinder, in the running process, the conductive sand connects the positive electrode and the negative electrode of the lithium battery to form a discharging loop, and heat generated in the discharging process of the lithium battery is discharged by the heat dissipation device of the conductive cylinder; the in-process that electrically conductive sand discharged to the lithium cell can not produce substances such as waste water, waste gas of polluted environment, and electrically conductive sand can cyclic utilization moreover, and the heat that the in-process that discharges produced is discharged by heat abstractor and is gone away, does not have the potential safety hazard.
The invention aims to solve another technical problem of providing a dry discharging device for waste lithium batteries, which is pollution-free and has high discharging efficiency.
In order to solve the technical problems, the technical scheme of the invention is as follows: a dry-type discharging device for waste lithium batteries comprises a base, wherein a conductive cylinder with two open ends is rotatably mounted on the base, the conductive cylinder is in transmission connection with a rotary driving device, a feeding device is mounted at one end of the conductive cylinder, a discharging device is mounted at the other end of the conductive cylinder, and a material stirring device is mounted in the conductive cylinder;
the heat dissipation device is used for dissipating heat in the conductive cylinder.
As a preferred technical scheme, the rotary driving device comprises a driving seat arranged below the conductive cylinder, a driving motor is installed on the driving seat, the driving motor is connected with a speed reducer in a transmission mode, the speed reducer is connected with a transmission gear in a transmission mode, and a transmission gear ring meshed with the transmission gear is installed on the outer wall of the conductive cylinder.
As a preferred technical solution, the feeding device comprises a feeding hopper, and an outlet end of the feeding hopper extends into a feeding port of the conductive cylinder;
the discharging device comprises a discharging hopper, the discharging end of the conductive cylinder extends into the feeding port of the discharging hopper, and a screen for separating the lithium battery from the conductive sand is installed below the discharging port of the discharging hopper.
As a preferred technical scheme, the material shifting device comprises a plurality of material shifting plates which are arranged on the inner wall of the conductive cylinder, the material shifting plates are arranged in an inclined manner, and an included angle of 5-10 degrees is formed between the material shifting plates and the axial direction of the conductive cylinder.
As a preferred technical scheme, heat abstractor is including setting up air intake on the feed arrangement, the last air outlet that is provided with of discharging device, air intake department installs air intake fan, air intake department installs air outlet fan.
As a preferable technical solution, the heat sink includes a cooling water jacket disposed on an outer wall of the conductive cylinder, and cooling water is filled between the cooling water jacket and the conductive cylinder.
By adopting the technical scheme, the dry-type discharging device for the waste lithium battery comprises a base, wherein a conductive cylinder with two open ends is rotatably arranged on the base, the conductive cylinder is connected with a rotary driving device in a transmission manner, one end of the conductive cylinder is provided with a feeding device, the other end of the conductive cylinder is provided with a discharging device, and a material stirring device is arranged in the conductive cylinder; the heat dissipation device is used for dissipating heat in the conductive cylinder; the material stirring device can prevent the lithium battery and the conductive sand from being accumulated in the conductive cylinder, prevent the local temperature rise caused by accumulation and ensure the safety; the heat dissipation device can well take away heat in the conductive cylinder, and the temperature in the conductive cylinder is controlled within a safe range.
The striker plate that the slope set up not only can prevent to lead to in the electrical cylinder because material density difference leads to lithium cell and electrically conductive sand layering, can also play the effect of pay-off, will lead to the material in the electrical cylinder to carry the discharge end from the feed end.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic structural diagram of a discharge device according to an embodiment of the present invention;
FIG. 2 is a side view of a discharge device according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a discharge device according to an embodiment of the present invention;
in the figure: 11-a base; 12-a conductive cylinder; 13-a kick-out plate; 14-a support base; 15-rotating carrier rollers; 16-a rotating support collar; 21-a driving seat; 22-a drive motor; 23-a speed reducer; 24-a transmission gear; 25-a transmission gear ring; 3-a feed hopper; 41-a discharge hopper; 42-a screen mesh; 51-an air inlet fan; and 52-air outlet fan.
Detailed Description
The invention is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
A dry discharging method for waste lithium batteries is characterized in that a lithium battery and conductive sand are mixed and placed in a conductive cylinder to drive the conductive cylinder to rotate, the mixture of the lithium battery and the conductive sand runs from a feed inlet to a discharge outlet of the conductive cylinder, in the running process, the conductive sand connects a positive electrode and a negative electrode of the lithium battery to form a discharging loop, and heat generated in the discharging process of the lithium battery is discharged by a heat dissipation device of the conductive cylinder.
The conductive sand is a conductive medium and comprises silicon-magnesium-aluminum alloy or silicon-iron alloy. The outer diameter of the conductive sand is 3-15 mm. The material and size of the conductive sand determine the conductivity of the conductive sand, so that the resistance value of a discharge circuit formed by the conductive sand is determined, and the conductive sand suitable for the specification can be selected according to the actual discharge requirement of lithium batteries with different specifications.
The contact resistance between the conductivity of the conductive sand and the conductive sand is adjusted by adjusting the components of the conductive sand and the diameter of the conductive sand, and finally the discharge current is adjusted within the safe discharge rate of the lithium battery, so that the discharge safety is ensured. Taking a lithium iron phosphate 26650 battery as an example, the bulk density of the battery is 2.5g/cm3The density of the conductive sand should be close to the density value of the waste lithium battery so as to prevent the battery from layering in the stirring process and prevent the discharging degree from being uneven.
The advancing speed of the mixture of the lithium battery and the conductive sand in the conductive cylinder is 0.05-0.2 m/s. Aiming at lithium batteries with different residual electric quantities, the time required by discharging is different, and the rotating speed of the conductive cylinder can be adjusted according to actual requirements, so that the advancing speed of the mixture of the lithium batteries and the conductive sand in the conductive cylinder is controlled, and the purpose of controlling the discharging time is achieved.
In the method, in the process of discharging the lithium battery by using the conductive sand, substances such as waste water and waste gas which pollute the environment can not be generated, the conductive sand can be recycled, and heat generated in the discharging process is discharged by the heat dissipation device without potential safety hazard.
Compared with the conventional discharging mode of adopting a salt solution to soak, the technical scheme has the following advantages:
1. a large amount of waste water and waste gas generated in the salt solution discharge mode pollute the environment, so secondary treatment is required. The invention has no waste water and waste gas discharge in the whole discharging process, has no pollution, and discharges the discharging energy completely in the form of heat.
2. The saline solution discharge mode, the battery immersion time is long, and the efficiency is low. The invention has the advantages of large discharge current (within the allowable discharge rate of the battery), simple discharge mode and high discharge efficiency.
As shown in fig. 1, 2 and 3, a dry discharging device for waste lithium batteries comprises a base 11, a conductive cylinder 12 with two open ends is rotatably mounted on the base 11, the conductive cylinder 12 is in transmission connection with a rotation driving device, one end of the conductive cylinder 12 is provided with a feeding device, the other end of the conductive cylinder 12 is provided with a discharging device, and a material stirring device is mounted in the conductive cylinder 12; and a heat dissipation device for dissipating heat inside the conductive cylinder 12. The base 11 comprises two base bodies located below two ends of the conductive cylinder, two support seats 14 located on two sides of the conductive cylinder 12 are symmetrically installed on each base body, a rotating carrier roller 15 is rotatably installed on each support seat 14, and a rotating support convex ring 16 matched with the rotating carrier rollers 15 on two sides is arranged on the conductive cylinder 12.
The rotary driving device comprises a driving seat 21 arranged below the conductive cylinder 12, a driving motor 22 is installed on the driving seat 21, the driving motor 22 is connected with a speed reducer 23 in a transmission mode, the speed reducer 23 is connected with a transmission gear 24 in a transmission mode, and a transmission gear ring 25 meshed with the transmission gear 24 is fixedly installed on the outer wall of the conductive cylinder 12.
The feeding device comprises a feeding hopper 3, and the outlet end of the feeding hopper 3 extends into the feeding port of the conductive cylinder 12; discharging device includes out hopper 41, the discharge end of electrically conductive section of thick bamboo 12 stretches into in the feed port of play hopper 41, install the discharge gate below of play hopper 41 will the lithium cell with the screen cloth 42 of electrically conductive sand separation, the mixture that goes out hopper 41 falls on screen cloth 42, because electrically conductive sand particle diameter is little, falls into the conveyer belt of screen cloth 42 below, can cyclic utilization.
The kick-out device comprises a plurality of kick-out plates 13 which are arranged on the inner wall of the conductive cylinder 12, the kick-out plates 13 are arranged in an inclined mode, and an included angle of 5-10 degrees is formed between the kick-out plates 13 and the axial direction of the conductive cylinder 12.
The heat dissipation device comprises an air inlet arranged on the feeding device, an air outlet arranged on the discharging device, an air inlet fan 51 arranged at the air inlet, wherein the air inlet fan 51 is arranged right above a feed inlet of the feed hopper 3, the feed inlet of the feed hopper 3 is divided into a left feed inlet and a right feed inlet, the left feed inlet and the right feed inlet are respectively used for feeding a lithium battery and conductive sand, and the air outlet is provided with an air outlet fan 52.
As another specific embodiment, the heat dissipation device includes a cooling water jacket (not shown) disposed on the outer wall of the conductive tube 12, and cooling water is filled between the cooling water jacket and the conductive tube 12.
The material stirring device can prevent lithium batteries and conductive sand from being accumulated in the conductive cylinder 12, prevent the local temperature from rising due to accumulation and ensure safety; the heat dissipation device can well take away heat in the conductive cylinder 12, and the temperature in the conductive cylinder 12 is controlled within a safe range. The striker plate that the slope set up not only can prevent that the interior lithium cell of electrically conductive section of thick bamboo 12 from piling up together with electrically conductive sand, can also play the effect of pay-off, will electrically conduct the material of interior section of thick bamboo 12 and carry the discharge end from the feed end.
When the device works, the conductive sand and the waste lithium battery are added into the discharge tube with the rotation function at the same time, the material shifting plate 13 with a certain angle is arranged on the inner wall of the discharge tube, and the conductive sand and the battery are turned in the discharge tube all the time. The two ends of the discharge tube are provided with an air inlet and an air outlet, and heat generated by discharge is timely discharged by adopting strong air for heat dissipation. The specific method and purpose are as follows:
1) adjusting the mixing proportion of the waste lithium battery and the discharge sand, the air quantity of the fan and adjusting the internal temperature of the discharge tube to be not more than 60 ℃.
2) The angle between the material shifting plate 13 and the horizontal plane is 5-10 degrees, the rotating speed of the discharge lamp is controlled through the variable frequency motor and the speed reducer 23, and the advancing speed of the mixed material in the discharge lamp is adjusted to 0.05-0.2 m/s together, so that the discharge is ensured to be completed. Due to the fact that the material shifting plate 13 is arranged, discharging heat of the batteries can be effectively dissipated, and the danger caused by overhigh temperature due to heat accumulation caused by battery accumulation is avoided. Meanwhile, the conductive sand and the waste battery are prevented from being layered in the advancing movement process to influence the discharging effect.
The discharge department at the section of thick bamboo that discharges sets up the separation mesh screen, sets up the net sieve mesh diameter according to reason battery diameter size and be 5 ~ 20mm, because the electrically conductive sand granularity is little, can separate out electrically conductive sand and useless lithium cell through the mesh screen to send electrically conductive sand into the electrically conductive sand feed inlet of battery discharge section of thick bamboo feeder hopper 3 through the conveyer belt, realize the recycling of electrically conductive sand.
The discharge efficiency of the battery can be adjusted by setting parameters such as the length of the flashlight, the rotating speed, the mixing ratio of the battery and the conductive sand and the like.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A dry discharging method for waste lithium batteries is characterized in that: mix lithium cell and conductive sand and put into in the conductive tube, the drive the conductive tube is rotatory, the lithium cell with the mixture of conductive sand is in from its feed inlet to its discharge gate operation in the conductive tube, in the operation process, conductive sand will the positive negative pole of lithium cell links to each other and forms the circuit of discharging, the heat that the lithium cell produced in the discharge process is discharged by the heat abstractor of conductive tube.
2. The dry discharging method of a waste lithium battery as set forth in claim 1, wherein: the conductive sand comprises silicon-magnesium-aluminum alloy or silicon-iron alloy.
3. The dry discharging method of a waste lithium battery as set forth in claim 1, wherein: the outer diameter of the conductive sand is 3-15 mm.
4. The dry discharging method of a waste lithium battery as set forth in claim 1, wherein: the advancing speed of the mixture of the lithium battery and the conductive sand in the conductive cylinder is 0.05-0.2 m/s.
5. The utility model provides a useless lithium cell dry-type discharging device which characterized in that: the conductive cylinder is rotatably installed on the base, the conductive cylinder is connected with a rotary driving device in a transmission mode, a feeding device is installed at one end of the conductive cylinder, a discharging device is installed at the other end of the conductive cylinder, and a material stirring device is installed in the conductive cylinder;
the heat dissipation device is used for dissipating heat in the conductive cylinder.
6. The dry type discharging device for waste lithium batteries as set forth in claim 5, wherein: the rotary driving device comprises a driving seat arranged below the conductive cylinder, a driving motor is installed on the driving seat, the driving motor is connected with a speed reducer in a transmission mode, the speed reducer is connected with a transmission gear in a transmission mode, and a transmission gear ring meshed with the transmission gear is installed on the outer wall of the conductive cylinder.
7. The dry type discharging device for waste lithium batteries as set forth in claim 5, wherein: the feeding device comprises a feeding hopper, and the outlet end of the feeding hopper extends into the feeding port of the conductive cylinder;
the discharging device comprises a discharging hopper, the discharging end of the conductive cylinder extends into the feeding port of the discharging hopper, and a screen for separating the lithium battery from the conductive sand is installed below the discharging port of the discharging hopper.
8. The dry type discharging device for waste lithium batteries as set forth in claim 5, wherein: the kick-out device comprises a plurality of kick-out plates which are arranged on the inner wall of the conductive cylinder in an arrayed mode, the kick-out plates are arranged in an inclined mode, and an included angle of 5-10 degrees is formed between the kick-out plates and the axial direction of the conductive cylinder.
9. The dry type discharging device for waste lithium batteries as set forth in claim 5, wherein: the heat dissipation device comprises an air inlet arranged on the feeding device, an air outlet is arranged on the discharging device, an air inlet fan is arranged at the air inlet, and an air outlet fan is arranged at the air outlet.
10. The dry type discharging device for waste lithium batteries as set forth in claim 5, wherein: the heat dissipation device comprises a cooling water jacket arranged on the outer wall of the conductive cylinder, and cooling water is filled between the cooling water jacket and the conductive cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111080350.XA CN113851743A (en) | 2021-09-15 | 2021-09-15 | Dry discharging method and discharging device for waste lithium battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111080350.XA CN113851743A (en) | 2021-09-15 | 2021-09-15 | Dry discharging method and discharging device for waste lithium battery |
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| CN113851743A true CN113851743A (en) | 2021-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116885329A (en) * | 2023-09-07 | 2023-10-13 | 深圳市杰成镍钴新能源科技有限公司 | Battery discharging device and battery discharging control method |
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| CN110931905A (en) * | 2019-12-03 | 2020-03-27 | 广东邦普循环科技有限公司 | System and method for batch discharge of retired power batteries |
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2021
- 2021-09-15 CN CN202111080350.XA patent/CN113851743A/en active Pending
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| CN109585966A (en) * | 2018-12-14 | 2019-04-05 | 河南小威环境科技有限公司 | A kind of system and method for lithium battery electric discharge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116885329A (en) * | 2023-09-07 | 2023-10-13 | 深圳市杰成镍钴新能源科技有限公司 | Battery discharging device and battery discharging control method |
| CN116885329B (en) * | 2023-09-07 | 2023-12-29 | 深圳市杰成镍钴新能源科技有限公司 | Battery discharging device and battery discharging control method |
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Application publication date: 20211228 |