CN208849035U - A kind of waste lithium cell processing equipment - Google Patents
A kind of waste lithium cell processing equipment Download PDFInfo
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- CN208849035U CN208849035U CN201821567657.6U CN201821567657U CN208849035U CN 208849035 U CN208849035 U CN 208849035U CN 201821567657 U CN201821567657 U CN 201821567657U CN 208849035 U CN208849035 U CN 208849035U
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- Prior art keywords
- kiln body
- tunnel oven
- pyrolysis
- zone
- burner
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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 discloses a kind of waste lithium cell processing equipments, including tunnel oven kiln body, kiln car, tunnel oven kiln body is divided into preheating zone, pyrolysis zone and cooling zone, burner is distributed in kiln body two sides, inlet port and outlet port are controlled using double-gate, kiln body top is provided with exhanst gas outlet, is sequentially connected secondary combustion chamber, quench chamber, deacidification device and bag filter by pipeline, the bag filter is connected with active carbon injection apparatus.Battery can be carried out whole pyrolysis by the utility model, can be not oxidized by the positive plate aluminium foil inside aluminum hull protection, and aluminium enters in the material of nickel powder containing cobalt during reducing rear end broken process；Low temperature pyrogenation and cooling are carried out using negative pressure oxygen-free environment, guarantees the metal ductility of aluminium and copper, is conducive to the separation of positive/negative plate Yu positive and negative anodes active material, the pyrolysis rate of electrolyte, diaphragm paper may be implemented not less than 99%.
Description
Technical field
The utility model relates to waste lithium cell recovery technology fields, and in particular to a kind of waste lithium cell low temperature pyrogenation and
Tail gas recycle processing equipment.
Background technique
Contain the electrolyte solutions such as a large amount of heavy metal and spent acid, salkali waste in waste and old lithium ion battery, if arbitrarily lost
It abandons, soil, water source etc. can be caused serious injury.The recycling and reusing of old and useless battery, one can prevent from polluting, and two can
To be recycled to wherein useful ingredient, economize on resources.
Overall structure is close in lithium ion battery, and especially positive and negative anodes active material is still bonded in electrode slice by binder
On, powdery is attached on the metal pole piece of positive and negative anodes, is difficult to separate by mechanical force.Publication No. CN103730704A's is special
Benefit discloses a kind of pair of waste secondary battery and carries out method of the burning disposal to remove the organic matter in secondary cell, though this method
So can by battery organic matter and inorganic matter preferably separate, but during the burning process, the metal in secondary cell is such as
A degree of oxidation can also occur for aluminium, copper etc., make the oxide powder that aluminium is mixed into isolated positive and negative anodes active material,
It is leached in process in subsequent wet and causes security risk.
Utility model content
For the technical problems in the prior art, the utility model provides a kind of good separating effect, and isolated
Electrode powder in the few waste lithium cell processing equipment of aluminium content.
The utility model solves scheme used by above-mentioned technical problem:
A kind of waste lithium cell processing equipment, including tunnel oven kiln body, and for loading transport waste lithium cell battery core
Kiln car, the tunnel oven kiln body uses refractory material laying, is divided into the preheating zone, pyrolysis zone and cooling zone being sequentially communicated, described
Burner is distributed in tunnel oven kiln body two sides, and the inlet port and outlet port of the tunnel oven kiln body are controlled using double-gate, described
Tunnel oven top is provided with exhanst gas outlet, and the exhanst gas outlet is sequentially connected secondary combustion chamber, quench chamber, deacidification dress by pipeline
It sets and bag filter, is connected in the pipeline for providing the negative pressure device of flow of flue gas power, the bag filter
It is connected with active carbon injection apparatus.
Preferably, the double-gate is closed back edge and is tightly connected with the tunnel oven kiln body.
Preferably, preheating zone, pyrolysis zone and the cooling zone of the tunnel oven kiln body are respectively arranged with temperature sensor, described
Burner is connected with burner control, and the temperature sensor is connect with the burner control signal.
Preferably, the deacidification device is that sodium bicarbonate is atomized deacidification device.
Compared with the existing technology, the utility model has the following beneficial effects:
1, battery can be carried out whole pyrolysis by the equipment of the utility model, it can be ensured that electrolyte all obtains innoxious place
Reason, electroless liquid drift the influence to operator and environment；Positive plate aluminium foil inside being protected by aluminum hull is not oxidized,
Aluminium enters in the material of nickel powder containing cobalt during reducing rear end broken process, increases the rate of recovery of aluminium；Recycling battery can be without over-discharge
Electricity is directly handled, and cost recovery has been saved.
2, equipment inside is negative pressure oxygen-free environment, reduces the oxygen of aluminium positive plate and copper negative electrode tab in pyrolysis and cooling procedure
Change, guarantee the metal ductility of aluminium and copper, be conducive to the separation of positive/negative plate Yu positive and negative anodes active material, passes through control pyrolysis temperature
The pyrolysis rate of electrolyte, diaphragm paper may be implemented not less than 99% in degree and pyrolysis time.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model waste lithium cell processing equipment.
Attached drawing mark in figure are as follows:
01, kiln body；02, burner；03, preheating zone；04, pyrolysis zone；05, cooling zone；06, kiln car；07, the first gate；
08, the second gate；09, third gate；10, the 4th gate；11, exhanst gas outlet；12, secondary combustion chamber；13, quench chamber；14,
It is atomized deacidification device；15, bag filter；16, active carbon injection apparatus；17, negative pressure device；18, discharge outlet.
Specific embodiment
To better understand the utility model, the following examples are the further explanations to the utility model, but this reality
The following examples are not limited solely to novel content.
Embodiment 1
The equipment that the present embodiment uses is as shown in Figure 1, include tunnel oven kiln body 01, the tunnel oven kiln body 01 is using resistance to
Fiery material is built, 40 meters long, 2 meters wide, 1.3 meters high, is discharged using 06 continuous feed of kiln car, and kiln car 06 is wide having a size of 2 meters of length
1.5 meters, the kind of drive of 0.8 meter of maximum work loading height, the kiln car 06 can refer to the prior art.
The preheating zone 03, pyrolysis zone 04 and cooling zone 05 that the tunnel oven kiln body 01 is divided to be sequentially communicated, 01 two sides of kiln body
20 burners 02 are distributed, wherein 16 are distributed in the two sides of pyrolysis zone 04,4 are distributed in the two sides of preheating zone 03.Burner
Volume caused by high-speed flow in 02 penetrating furnace is inhaled and disturbance effect keeps in-furnace temperature uniform, and the rate of heat addition is fast.Preheating zone 03
Temperature is 150-250 DEG C, and the period of motion of the kiln car 06 in preheating zone 03 is 30 minutes；04 temperature control of pyrolysis zone control is 250-450
DEG C, not more than 500 DEG C, the period of motion of the kiln car 06 in pyrolysis zone 04 is 1 hour；05 temperature of cooling zone control for no more than
100 DEG C, the period of motion of the kiln car 06 in cooling zone 05 is 30 minutes, and by pyrolysis, electrolyte and diaphragm paper pyrolysis rate are not less than
99%.
The burner 02 is respectively connected with independent burner control unit, including flame monitor, igniter, combustion gas electricity
The gas electromagnetic valve of the components such as magnet valve, combustion gas manually-operated gate, each burner control unit can also pass through solenoid valve control system
System carries out centralized control.Flame monitor is for monitoring flame at 02 burner of burner, gas electromagnetic valve and combustion gas manually-operated gate
On-off for independent control fuel gas.When flame monitor detects that 02 flameout of burner then automatically cuts off the burner
Gas electromagnetic valve is simultaneously alarmed, and guarantees gas burning system safe operation.Igniter is used for the after burner nozzle connects fuel gas
One time lighted fuel gas.Preheating zone 03, pyrolysis zone 04 and the cooling zone 05 of the tunnel oven kiln body 01 are provided with temperature
Sensor is spent, the temperature sensor is connect with the gas electromagnetic valve signal, when sensor detects that kiln temperature deviation is set
It when definite value, that is, gives a warning, operator can manually adjust combustion gas manually-operated gate, or be set in advance by electromagnetic valve controlling system
Fixed procedure auto-control gas electromagnetic valve, to be adjusted to burner 02, it is ensured that temperature reaches desirable value in kiln body 01,
And without excess air when burning.
The inlet port and outlet port of tunnel oven kiln body 01 are controlled using double-gate, as shown in Figure 1, being provided with the at feed inlet
One gate 07 and the second gate 08, discharge outlet are provided with third gate 09 and the 4th gate 10.Before kiln car 06 enters feed inlet,
First gate 07 is opened, and the second gate 08 is closed, and after kiln car 06 enters the first gate 07, the first gate 07 is closed, the second gate
08 opens, and kiln car 06 enters preheating zone 03；Before kiln car 06 leaves discharge port, third gate 09 is opened, and the 4th gate 10 is closed, kiln
After vehicle 06 enters third gate 09, third gate 09 is closed, and the 4th gate 10 is opened, and kiln car 06 leaves cooling zone 05.Double-gate
It closes back edge to be tightly connected with the tunnel oven kiln body 01, existing skill can be used in the sealed connection mode of gate and kiln body 01
Art so can be achieved anaerobic or anaerobic environment in kiln, achieve the purpose that pyrolysis, avoid air excess, prevent diaphragm paper and electricity
Solution liquid burns in furnace, keeps in-furnace temperature out of hand.
The tunnel oven top is provided with exhanst gas outlet 11, due to the leakproofness inside equipment, makes oxygen in the flue gas of discharge
Concentration is no more than 2%.The exhanst gas outlet 11 is sequentially connected secondary combustion chamber 12, quench chamber 13, atomization deacidification dress by pipeline
14, bag filter 15 and discharge outlet 18 are set, is connected in the pipeline for providing the negative pressure device 17 of flow of flue gas power,
Make the tiny structure of holding -0.1kpa in kiln, the bag filter 15 is connected with active carbon injection apparatus 16.
For secondary combustion chamber 12 using natural gas and pyrolysis smoke as heat source, ignition temperature is not less than 900 DEG C, burning time
Not less than 3 seconds, second-time burning processing and quenching can utmostly avoid the generation of dioxin.And quenching can be with
Recovery section hot steam.Using sodium bicarbonate atomization dry method deacidification, the sour gas such as fluorine and chlorine for caning absorb in tail gas are kept away simultaneously
Exempt from corrosion of the fluoride waste to equipment.
When carrying out lithium battery pyrolysis processing and tail gas recycle using above equipment, without electric discharge, dismantling is come out waste and old
Lithium battery electric core integrally carries out low-temperature prewarming, and the sealing ring of battery core end is decomposed in warm, then to preheated
Battery core carries out heating pyrolysis, and organic matter in temperature-rise period inside battery core such as binder, organic barrier film etc. gasifies and via close
The position evolution that seal is decomposed；Cooling, is cooled to battery core no more than 100 DEG C；
The flue gas escaped during pyrolysis is discharged by flue gas mouth and carries out purified treatment.Gas cleaning process packet
It includes:
(1) flue gas that pyrolysis generates is collected by negative pressure, and carries out second-time burning；
(2) quenching is used to the flue gas after burning, drops to flue-gas temperature no more than 250 DEG C；
(3) by the flue gas after chilling using sodium bicarbonate atomization deacidification；
(4) super fine activated carbon is sprayed into the flue gas after deacidification, dust is collected finally by bag filter 15,
Flue gas direct emission after dedusting.
The above is preferred embodiments of the present invention, certainly cannot with this come limit the utility model it
Interest field, it is noted that for those skilled in the art, before not departing from the utility model principle
It puts, several improvement and variation can also be made, these, which improve and change, is also considered as the protection scope of the utility model.
Claims (4)
1. a kind of waste lithium cell processing equipment, which is characterized in that transport useless old lithium including tunnel oven kiln body, and for loading
The kiln car of pond battery core, the tunnel oven kiln body use refractory material laying, are divided into the preheating zone, pyrolysis zone and cooling being sequentially communicated
Burner is distributed in area, tunnel oven kiln body two sides, and the inlet port and outlet port of the tunnel oven kiln body are gated using double-gate
System, the tunnel oven top are provided with exhanst gas outlet, and the exhanst gas outlet is sequentially connected secondary combustion chamber, chilling by pipeline
Room, deacidification device and bag filter are connected with for providing the negative pressure device of flow of flue gas power, the cloth in the pipeline
Bag dust collector is connected with active carbon injection apparatus.
2. equipment according to claim 1, which is characterized in that the double-gate close back edge with the tunnel kiln
Body is tightly connected.
3. equipment according to claim 1, which is characterized in that preheating zone, pyrolysis zone and the cooling of the tunnel oven kiln body
Area is respectively arranged with temperature sensor, and the burner is connected with burner control, the temperature sensor and the burning
The connection of device controller signals.
4. equipment according to claim 1, which is characterized in that the deacidification device is that sodium bicarbonate is atomized deacidification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821567657.6U CN208849035U (en) | 2018-09-25 | 2018-09-25 | A kind of waste lithium cell processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821567657.6U CN208849035U (en) | 2018-09-25 | 2018-09-25 | A kind of waste lithium cell processing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN208849035U true CN208849035U (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821567657.6U Active CN208849035U (en) | 2018-09-25 | 2018-09-25 | A kind of waste lithium cell processing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193058A (en) * | 2018-09-25 | 2019-01-11 | 荆门市格林美新材料有限公司 | A kind of waste lithium battery treatment and equipment |
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2018
- 2018-09-25 CN CN201821567657.6U patent/CN208849035U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193058A (en) * | 2018-09-25 | 2019-01-11 | 荆门市格林美新材料有限公司 | A kind of waste lithium battery treatment and equipment |
| CN109193058B (en) * | 2018-09-25 | 2024-04-02 | 荆门动力电池再生技术有限公司 | Waste lithium battery treatment method and equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220302 Address after: 448124 No. 3, Yingchun Avenue, Duodao District, Jingmen City, Hubei Province (Jingmen Power Battery) Patentee after: Jingmen Power battery regeneration technology Co.,Ltd. Address before: 448000 Jingmen high tech Industrial Development Zone, Jingmen City, Hubei Province Patentee before: JINGMEN GEM Co.,Ltd. |