CN219329296U - Old and useless lithium cell carbonization system - Google Patents
Old and useless lithium cell carbonization system Download PDFInfo
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- CN219329296U CN219329296U CN202320078996.2U CN202320078996U CN219329296U CN 219329296 U CN219329296 U CN 219329296U CN 202320078996 U CN202320078996 U CN 202320078996U CN 219329296 U CN219329296 U CN 219329296U
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- carbonization
- lithium battery
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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
Abstract
The utility model relates to a recovery system of a lithium battery, in particular to a carbonization system of a waste lithium battery, which comprises a feeding device, a carbonization furnace and a discharging device which are sequentially connected, wherein the carbonization furnace is used for discharging and carbonizing the lithium battery. According to the carbonization system of the waste lithium battery, disclosed by the utility model, the lithium battery is discharged through high temperature, so that automatic pyrolysis and fission of the lithium battery are realized, the discharge and carbonization of the lithium battery are concentrated, the carbonization efficiency is improved, the electrolyte is quickly volatilized, and meanwhile, the temperature in a furnace can be kept by heat generated by pyrolysis and fission; the diaphragm is carbonized in the carbonization process, the subsequent separation is easy, and the carbonized lithium battery is convenient for subsequent crushing and screening due to no liquid, so that the screening effect is improved; the waste water is not generated, and the volatile harmful gas generated at high temperature can be collected and treated, so that the environmental protection requirement can be met, and the quality of the recovered material is greatly improved.
Description
Technical Field
The utility model relates to a recovery system of a lithium battery, in particular to a carbonization system of a waste lithium battery.
Background
When the waste batteries are recycled, heavy metals in the batteries, such as lithium batteries, are mainly recycled, and metal elements, such as cobalt, nickel, lithium and the like, in the lithium batteries are mainly recycled, the lithium batteries are required to be crushed and carbonized before metal is recycled, and because electricity still exists in the lithium batteries, the lithium batteries are easy to crack during crushing, the lithium batteries are required to be discharged before recycling, and at present, two common methods for discharging are available:
1. the brine soaking discharge, the method can generate the problems of sewage, waste gas and the like, the sewage and waste gas treatment difficulty is high, and meanwhile, the discharge time is long, and generally about 72 hours is needed;
2. the broken shell discharges, and the broken shell burns when discharging, needs to be continuously poured out with water to produce sewage, and hydrofluoric acid in electrolyte can produce hydrogen fluoride gas, so that the hydrogen fluoride gas is difficult to collect and treat and has great harm to the environment.
Disclosure of Invention
In order to solve the problems, the utility model provides a waste lithium battery carbonization system which integrates the discharge and carbonization of a lithium battery, does not generate sewage and can realize environmental protection recovery, and the specific technical scheme is as follows:
the carbonization system for the waste lithium battery comprises a feeding device, a carbonization furnace and a discharging device which are connected in sequence, wherein the carbonization furnace is used for discharging explosion and carbonization of the lithium battery.
Preferably, the carbonization furnace comprises a heat accumulation chamber and a furnace tube, the furnace tube is rotatably arranged in the heat accumulation chamber, the feeding device is movably inserted into the feeding end of the furnace tube, the discharging device is arranged at the discharging end of the furnace tube, and spiral blades are arranged in the furnace tube.
Further, the diameter of the carbonization furnace is 1-1.4 meters, and the length of the carbonization furnace is 8-12 meters.
Preferably, the heating temperature of the carbonization furnace is 90-250 ℃.
Preferably, the feeding device comprises a lifter and a screw feeder.
Preferably, the discharging device comprises a screw discharging machine.
Further, the spiral discharging machine is a jacket cooling type spiral discharging machine.
Preferably, the device further comprises an exhaust gas treatment device, and the exhaust gas treatment device is connected with the carbonization furnace.
The waste gas treatment device comprises a cyclone separator, an air cooler, a pulse dust collector, an induced draft fan and an incineration system which are sequentially connected.
Preferably, the device further comprises an air inlet device, wherein the air inlet device is connected with an air inlet of the carbonization furnace and used for controlling the oxygen content in the carbonization furnace.
Compared with the prior art, the utility model has the following beneficial effects:
according to the carbonization system of the waste lithium battery, disclosed by the utility model, the lithium battery is discharged through high temperature, so that automatic pyrolysis and fission of the lithium battery are realized, the discharge and carbonization of the lithium battery are concentrated, the carbonization efficiency is improved, the electrolyte is quickly volatilized, and meanwhile, the temperature in a furnace can be kept by heat generated by pyrolysis and fission; the diaphragm is carbonized in the carbonization process, the subsequent separation is easy, and the carbonized lithium battery is convenient for subsequent crushing and screening due to no liquid, so that the screening effect is improved; the waste water is not generated, and the volatile harmful gas generated at high temperature can be collected and treated, so that the environmental protection requirement can be met, and the quality of the recovered material is greatly improved.
Drawings
FIG. 1 is a schematic structural view of a carbonization furnace;
FIG. 2 is a top view of the carbonization furnace;
FIG. 3 is a cross-sectional view of a carbonization furnace;
fig. 4 is a block diagram of a carbonization system for waste lithium batteries.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
As shown in fig. 1 to 4, the carbonization system for the waste lithium battery comprises a feeding device 3, a carbonization furnace, a discharging device 4, a draught fan and an air inlet device, wherein the feeding device 3, the carbonization furnace and the discharging device 4 are sequentially connected, the draught fan is connected with the carbonization furnace and used for extracting waste gas in the carbonization furnace, and the carbonization furnace is used for discharging burst and carbonization of the lithium battery. The air inlet device is connected with an air inlet 13 of the carbonization furnace and is used for controlling the oxygen content in the carbonization furnace.
The carbonization furnace is a rotary carbonization furnace, the diameter of the carbonization furnace is 1-1.4 meters, and the length of the carbonization furnace is 8-12 meters. The heating temperature of the carbonization furnace is 90-250 ℃. The carbonization furnace comprises a heat storage chamber 1 and a furnace tube 2, the furnace tube 2 is rotatably installed in the heat storage chamber 1, the feeding device 3 is movably inserted into the feeding end of the furnace tube 2, the discharging device 4 is installed at the discharging end of the furnace tube 2, and spiral blades 21 are arranged in the furnace tube 2. The regenerator 1 is provided with heating holes 11, and the heating holes 11 are connected with a burner; the furnace tube 2 is provided with a plurality of exhaust holes which are communicated with the heat storage 1, the top of the heat storage chamber is provided with an air-guiding hole 12, and the air-guiding hole 12 is connected with an induced draft fan.
The feeding device 3 comprises a lifter and a screw feeder. The discharging device 4 comprises a spiral discharging machine, and can also be a jacket cooling type spiral discharging machine for cooling materials.
The waste gas treatment device comprises a cyclone separator, an air cooler, a pulse dust collector, an induced draft fan and an incineration system which are connected in sequence.
When the lithium battery is carbonized, a burner with a diameter of 30-50 ten thousand kilocalories can be adopted for preheating, and when the temperature of the carbonization furnace reaches 100 ℃, feeding can be carried out, and when feeding, feeding can be carried out through a lifter and a spiral feeder. The lithium battery is discharged and exploded at the front end of the carbonization furnace, volatile gas is generated, the volatile gas and air in the carbonization furnace are mixed and flash-burned, and a large amount of heat is released by the flash-burned, so that the internal temperature of the carbonization furnace is rapidly increased, and the burner can not supply heat at the moment, so that the internal temperature of the carbonization furnace is kept at 180-250 ℃ (the temperature measuring point is positioned at the discharge end of the carbonization furnace).
The carbonization temperature needs to be controlled, otherwise, over-temperature carbonization can occur, the over-temperature carbonization not only affects the service life of a carbonization furnace, but also causes excessive oxidization of aluminum foil, so that aluminum cannot be separated subsequently, and the aluminum content of a finished product exceeds the standard.
The carbonization furnace is a rotary carbonization furnace or a spiral carbonization furnace. The discharge of the carbonization furnace adopts a spiral discharge machine.
Carbonization of lithium batteries is continuously carried out, and waste lithium batteries continuously enter a carbonization furnace according to a certain amount, and are sent to a crushing procedure through a spiral discharging machine after carbonization.
The lithium battery is about 15-18 minutes from entering the carbonization furnace to leaving the carbonization furnace.
The whole operation process is continuous, can be used for continuous and safe production for 24 hours, and the treatment capacity per hour can reach 1.2-1.5 tons, which is far greater than the prior art
The disassembled lithium battery refers to a lithium battery with a plastic hard shell for fixing the lithium battery removed, and the lithium battery can be a round lithium battery, a square lithium battery or a soft package lithium battery.
The lithium battery is discharged to burst after being heated, and is pyrolyzed and fissionable in the carbonization furnace.
Waste gas generated in the carbonization furnace is intensively pumped out by an induced draft fan, enters a pulse bag-type dust collector through a cyclone separator and an air cooler to collect carbon powder, and the dust-removed gas is discharged after reaching the standard through an incineration system. The incineration system may be RCO (catalytic incineration) or RTO (thermal storage incineration).
In the carbonization process, diaphragm paper and the like are carbonized and are easy to separate cleanly, and the carbonized lithium battery has good effect on subsequent crushing and screening due to no liquid.
The continuous carbonization process of the carbonization furnace is adopted to simultaneously discharge and carbonize the lithium battery, no sewage is generated, and the volatile harmful gas generated at high temperature can be collected and treated, so that the environment-friendly requirement can be met, and the quality of the recycled product is greatly improved.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will occur to those skilled in the art from consideration of the specification and practice of the utility model without the need for inventive faculty, and are within the scope of the claims.
Claims (9)
1. The waste lithium battery carbonization system is characterized by comprising a feeding device, a carbonization furnace, a discharging device and an induced draft fan, wherein the feeding device, the carbonization furnace and the discharging device are sequentially connected, the induced draft fan is connected with the carbonization furnace and used for extracting waste gas in the carbonization furnace, and the carbonization furnace is used for discharging and carbonizing a lithium battery.
2. The carbonization system of waste lithium battery as claimed in claim 1, wherein,
the carbonization furnace comprises a heat accumulation chamber and a furnace tube, the furnace tube is rotatably arranged in the heat accumulation chamber, the feeding device is movably inserted into the feeding end of the furnace tube, the discharging device is arranged at the discharging end of the furnace tube, and spiral blades are arranged in the furnace tube.
3. A waste lithium battery carbonization system according to claim 2, wherein,
the diameter of the carbonization furnace is 1-1.4 meters, and the length is 8-12 meters.
4. The carbonization system of waste lithium battery as claimed in claim 1, wherein,
the feeding device comprises a lifting machine and a spiral feeder.
5. The carbonization system of waste lithium battery as claimed in claim 1, wherein,
the discharging device comprises a spiral discharging machine.
6. The carbonization system of waste lithium battery as claimed in claim 5, wherein,
the spiral discharging machine is a jacket cooling type spiral discharging machine.
7. A waste lithium battery carbonization system according to any one of the claims 1 to 6, characterized in that,
the device also comprises an exhaust gas treatment device, and the exhaust gas treatment device is connected with the carbonization furnace.
8. The carbonization system of waste lithium battery as claimed in claim 7, wherein,
the waste gas treatment device comprises a cyclone separator, an air cooler, a pulse dust collector and an incineration system which are sequentially connected, and the induced draft fan is respectively connected with the pulse dust collector and the incineration system.
9. A waste lithium battery carbonization system according to any one of the claims 1 to 6, characterized in that,
the air inlet device is connected with the air inlet of the carbonization furnace and used for controlling the oxygen content in the carbonization furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320078996.2U CN219329296U (en) | 2023-01-10 | 2023-01-10 | Old and useless lithium cell carbonization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320078996.2U CN219329296U (en) | 2023-01-10 | 2023-01-10 | Old and useless lithium cell carbonization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219329296U true CN219329296U (en) | 2023-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320078996.2U Active CN219329296U (en) | 2023-01-10 | 2023-01-10 | Old and useless lithium cell carbonization system |
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| CN (1) | CN219329296U (en) |
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2023
- 2023-01-10 CN CN202320078996.2U patent/CN219329296U/en active Active
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