CN208976491U - A kind of innocuity disposal system of lithium metal waste residue - Google Patents
A kind of innocuity disposal system of lithium metal waste residue Download PDFInfo
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Abstract
The utility model discloses a kind of innocuity disposal systems of lithium metal waste residue.The system comprises: waste residue heats container, with heating chamber, partition is equipped in the heating chamber, peripheral part and heating chamber the inner wall surrounding sealing of the partition cooperate；Upper cover has protective gas pipeline and out lithium pipeline, and the upper cover lower part is equipped with strainer；Heating unit is at least used to heat container to waste residue and lithium pipeline heats out；Gas control unit is at least used to input protective gas into heating chamber or vacuumize to heating chamber；Rabbling mechanism is at least used to disturb the indoor material of heating chamber；Partition driving mechanism and Tui Bing mechanism are at least used to remove the residual filter cake remained on partition.The system of the utility model is not chemically reacted when handling lithium metal waste residue, is not contacted with air, has prevented security risk, and directly can fast and effeciently recycle the lithium metal in lithium metal waste residue, high financial profit.
Description
Technical field
The utility model relates to a kind of innocuity disposal systems of lithium metal waste residue, in particular to a kind of fast and effeciently golden
The innocuity disposal system for belonging to lithium waste residue, recycles lithium metal therein, belongs to the recovery technology field of lithium.
Background technique
Lithium metal is Sweden chemist A Aerfuweitesang 1817 and finds in a kind of rare rock first
's.The symbol of element of lithium metal is Li, is argenteous metal, relative atomic mass 6.941, density 0.534g/cm3, it is most
Light metal, 180.54 DEG C of fusing point, 1317 DEG C of boiling point.Lithium metal has strong reducing property, can be with a large amount of inorganic reagents and organic examination
Agent reacts, with the equal energy chemical combination such as oxygen, nitrogen, sulphur.It is uniquely to be reacted at room temperature with nitrogen, generates lithium nitride (Li3N alkali)
Metal.It is exposed to and is easy to react with oxygen in humid air, meet the burning of water vigorous reaction or explosion.In 500 DEG C or so easy and hydrogen
It reacts, is that can uniquely generate to be stable enough to melt and the alkali metal of Undec hydride.Lithium metal vulnerable to oxidation and
Density ratio kerosene is small, therefore generally deposits in atoleine.At present lithium metal be widely used in lithium battery, aviation, metallurgy, chemical industry,
Medicine and building materials etc. are industrial, for producing lithium battery, lightweight lithium-aluminium alloy, organic synthesis vitamin and synthetic rubber etc..
The oily refining stage in lithium metal manufacturing process can generate a large amount of waste residues containing lithium, and quality is about lithium metal yield
3%, main component includes lithium metal, potassium, sodium and its oxide, nitride, carbide.Lithium metal waste residue be usually be immersed in it is white
In oil, after pulling out in white oil, surface can uniformly cover one layer of oil film, this layer of oil film prevent water in lithium metal and air,
The direct contact of oxygen and nitrogen etc. plays the role of protecting lithium metal waste residue.After lithium metal waste residue recycles barrelling, with putting
The extension of time is set, the oil film on lithium metal waste residue surface is gradually thinning, and in the handling process, rubbing between lithium metal waste residue
The destruction for promoting oil film is wiped, the generations such as the lithium metal that oil film is protected and water, oxygen and nitrogen in air is lost and reacts as follows:
Li+H2O=LiOH+H2↑
4Li+O2=2Li2O
Li2O+H2O=2LiOH
6Li+N2=2Li3N
Li3N+3H2O=3LiOH+NH3↑
Above-mentioned reaction discharges a large amount of reaction heat, and generates gas, if these lithium metal waste residues cannot be disposed in time, heat
Amount cannot discharge in time, gather by prolonged heat, and the temperature of lithium metal waste residue gradually rises, and accumulate to a certain extent just
Spontaneous combustion can occur even to explode, cause fire, cause any property loss and personal injury, 3 lithium metals only just occurred within 2012
Waste residue auto-ignition event.Therefore the safe handling of lithium metal waste residue is particularly important, and has very big social value and economic valence
Value.
Current lithium metal Solid state fermentation device is predominantly following several:
1. lithium metal waste residue, which is dissolved in water, obtains the compound of lithium.For example, patent CN1326640C provides a kind of conjunction
At the method for hydrolysis of lithium slag from lithium alkyl, lithium alkylide is filtered in resulting lithium slag income lithium slag surge tank, lithium is then passed through
Lithium slag is slowly pressed into hydrolysis kettle by slag metering pump, hydrolysis occurs with water a large amount of in hydrolysis kettle, reaction temperature control exists
60 DEG C hereinafter, and control the additional amount of lithium slag by the temperature of hydrolysis kettle；Reaction heat is taken away by autoclave body collet cooling water, instead
The gases such as the hydrocarbon solvent for answering process to be evaporated then are recycled by the way that blowdown condenser is cooling.But lithium metal waste residue is dissolved in
Water obtains the compound of lithium, and due to the active character of lithium metal, reaction acutely, generates a large amount of hydrogen when lithium metal waste residue is dissolved in water
Gas inevitably will appear the dangerous situations such as burning even explosion, in terms of there is safety and environmental protection.
2. handling lithium metal waste residue by high-temp combustion, oxidation is formed when the metal component in lithium metal waste residue burns
Object, and metallic state lithium is then heated to melt and is detached from main body, individually recycles after cooling.For example, patent CN104764024B provides one
Kind sodium-potassium-lithium and lithium slag waste treatment device, including combustion chamber, flue gas processing device and flue gas discharger.Point in the combustion chamber
Fire sodium-potassium-lithium and lithium slag material, lithium material conversion is oxide, and since the fusing point of lithium metal is low when burning, lithium metal is heated to
Row's lithium leak hole is crossed after molten condition and is drained into and is contained lithium basin.The oxide obtained after burning is by the i.e. recyclable lithium money of hydrolysis process
Source.A large amount of flue gas is generated in combustion process, which does harmless treatment by flue gas processing device, arranges eventually by flue gas
Device drains into the external world out.Lithium metal waste residue is handled by high-temp combustion, also due to the active character of lithium metal,
Red-hot metal ball body easy to form under high temperature ignites the gas (hydrogen and organic gas etc.) that reaction generates, so that metal
There is hidden danger out of control of burning when lithium waste residue burns in air, it cannot achieve the purpose that safe handling lithium metal waste residue, together
When this processing unit also have that equipment is more, process is complicated and the higher disadvantage of energy consumption.
3. recycling lithium metal using smelting process.For example, patent CN 106756067A is related to a kind of method for recycling lithium metal
And the technique for preparing lithium metal, comprising the following steps: by 50~60 parts of lithium chlorides and 40~50 parts of potassium chloride mixed meltings, obtain
To the first mixed molten liquid.Heating melting after addition lithium slag, obtains the second mixed molten liquid in the first mixed molten liquid.It is mixed to second
It is melted after 8~10 parts of additives are added after melt removal of impurities, when supernatant liquid becomes silvery white, is recycled from supernatant liquid
Lithium metal.Smelting process recycles lithium metal, needs to add more chloride, higher cost, process is longer, and equipment requirement is higher.
Utility model content
The main purpose of the utility model is to provide a kind of innocuity disposal systems of lithium metal waste residue, to overcome
Deficiency in the prior art.
To achieve the above object, the utility model adopts the technical scheme that
The utility model embodiment provides a kind of innocuity disposal system of lithium metal waste residue comprising:
Waste residue heats container, with heating chamber, partition is equipped in the heating chamber, the partition is at least used to hold
Lithium metal waste residue is carried, peripheral part and heating chamber the inner wall surrounding sealing of the partition cooperate；
Upper cover has protective gas pipeline and out lithium pipeline, and the upper cover lower part is equipped with strainer, when the upper cover
When in conjunction with waste residue heating container, the heating chamber is closed, and the strainer is placed in heating chamber；
Heating unit is at least used to heat container to the waste residue and lithium pipeline heats out；
Gas control unit is at least used to input protective gas into the heating chamber or to the heating chamber
It vacuumizes；
Rabbling mechanism is at least used to disturb the indoor material of the heating chamber；
Partition driving mechanism is at least used to that the partition to be driven to move up and down in heating chamber；And
Tui Bing mechanism is at least used to remove the residual filter cake remained on partition.
Compared with the prior art, the utility model has the beneficial effects that:
1) innocuity disposal system of lithium metal waste residue provided by the utility model does not occur when handling lithium metal waste residue
Chemical reaction, does not contact with air, has prevented security risk, and being capable of direct fast and effeciently innoxious recycling lithium metal waste residue
In lithium metal, simple process, high financial profit；
2) system of the utility model only consumes a small amount of working gas when handling lithium metal waste residue, and working gas can be with
Recycling, will not generate inflammable and poisonous gas, safety and environmental protection；
3) the lithium metal waste residue filters pressing at high temperature of the utility model, process is rapid, and obtained lithium metal quality is higher, processing
Time-consuming less, process flow is shorter；Also, treated, and filter cake has a safety feature, and reacts slow with air and water.
Detailed description of the invention
Fig. 1 is a kind of work shape of the innocuity disposal system of lithium metal waste residue in one typical embodiments of the utility model
State structural schematic diagram.
Fig. 2 is a kind of seperated shape of the innocuity disposal system of lithium metal waste residue in one typical embodiments of the utility model
State structural schematic diagram.
Description of symbols: 1- waste residue heats container, 10- heating chamber, 11- partition, 200- upper cover, 21- protective gas
Pipeline, 22- go out lithium pipeline, 23- strainer, 300- heating unit, 400- rabbling mechanism, 500- process gas pipes, and 600- pushes away cake
Mechanism, 700- upper cover driving mechanism, 800- residual filter cake.
Specific embodiment
In view of deficiency in the prior art, inventor is studied for a long period of time and is largely practiced, and is able to propose that this is practical new
The technical solution of type as follows will be further explained the technical solution, its implementation process and principle etc..
As the other side of technical solutions of the utility model, involved in be a kind of the innoxious of lithium metal waste residue
Processing system comprising:
Waste residue heats container, with heating chamber, partition is equipped in the heating chamber, the partition is at least used to hold
Lithium metal waste residue is carried, peripheral part and heating chamber the inner wall surrounding sealing of the partition cooperate；
Upper cover has protective gas pipeline and out lithium pipeline, and the upper cover lower part is equipped with strainer, when the upper cover
When in conjunction with waste residue heating container, the heating chamber is closed, and the strainer is placed in heating chamber；
Heating unit is at least used to heat container to the waste residue and lithium pipeline heats out；
Gas control unit is at least used to input protective gas into the heating chamber or to the heating chamber
It vacuumizes；
Rabbling mechanism is at least used to disturb the indoor material of the heating chamber；
Partition driving mechanism is at least used to that the partition to be driven to move up and down in heating chamber；And
Tui Bing mechanism is at least used to remove the residual filter cake remained on partition.
In some embodiments, the Tui Bing mechanism include it is horizontally disposed push away cake bar, the partition at least can be
It is moved back and forth between one station, second station and 3rd station, first station, second station and 3rd station are from bottom to top
It sets gradually；At the second station, the partition can cooperatively form pressure filtration mechanism with strainer, and the pressure filtration mechanism is at least
For filtering out lithium metal liquid from the mixture of lithium metal liquid and solid impurity and transport to out lithium pipeline, and make more than solid impurity
It stays in forming residual filter cake on partition；At the 3rd station, the residual filter cake is concordant with cake bar is pushed away.
In some embodiments, the partition driving mechanism includes the process gas pipes and work being connected to heating chamber
Make the working gas heating container of gas pipeline connection, and the heating unit is at least also used to the working gas heating container
It is heated with process gas pipes.
Wherein, the working gas heating container refers to that working gas carries out before entering lithium metal waste residue heating container
A pre-heated container, after working gas first heats second temperature wherein, using the work for being heated to second temperature
Gas pipeline heat preservation enters waste residue and heats container, avoids leading after the working gas of lower temperature is directly passed through waste residue heating container
The melting waste residues temperature of cause, which reduces, even to be solidified.
Further, the lithium pipeline out is connected to collection lithium tank.
Further, the heating chamber is also connected to external oil cooled system system.
In some embodiments, the system also includes: upper cover driving mechanism is at least used to that upper cover to be driven to add with waste residue
Heat container separation combines.
Further, the aperture of the strainer is 5 μm~1000 μm.When the aperture of the strainer is then easier to block up lower than 5 μm
Plug, influences filter efficiency；Higher than 1000 μm, then impurity is easier to impurity in the lithium metal for causing recycling by strainer in the aperture of strainer
Content is higher.
Using the utility model system carry out lithium metal waste residue method for innocent treatment the step of include:
Lithium metal waste residue is placed in closed heating chamber, and by the indoor gas of heating chamber be thoroughly replaced into not with lithium
The protective gas of reaction；
Lithium metal waste residue is heated to the first temperature and is disturbed, and heating chamber is vacuumized, realizes oil removal treatment；
After completing the oil removal treatment, continues lithium metal waste residue being heated to second temperature and disturb, make wherein
Lithium metal melt and be collected as lithium metal liquid, and be layered lithium metal liquid and solid impurity；
It flows out the lithium metal liquid out of heating chamber by being placed in after the indoor strainer of heating chamber, and keeps solid-state miscellaneous
Matter is retained by the strainer.
The utility model is for fast and effeciently handling lithium metal waste residue and recycling lithium metal therein, concrete application range
It includes but are not limited to: the processing of lithium metal waste residue and other mixtures containing lithium metal, the mixing of alkali metal and alkali metal containing
The processing of object.
In some embodiments, first temperature is 150~250 DEG C.
In some embodiments, the second temperature is 200~400 DEG C.When heating, the temperature of lithium metal waste residue molten liquid
Degree can also isolate lithium metal molten liquid at slightly below 200 DEG C by strainer, but filter process is extremely slow, filtration time
It is too long；The temperature of lithium metal waste residue molten liquid can also isolate lithium metal molten liquid, but high temperature at 400 DEG C or more by strainer
In the case of impurity may burn, volatilize and melt, and energy consumption is excessively high, and filtering rate will not improve.
Further, the aperture of the strainer is 5 μm~1000 μm.When the aperture of the strainer is then easier to block up lower than 5 μm
Plug, influences filter efficiency；Higher than 1000 μm, then impurity is easier to impurity in the lithium metal for causing recycling by strainer in the aperture of strainer
Content is higher.
In some embodiments, which comprises when lithium metal waste residue temperature is increased to 150~250 DEG C, to heating
It is 100~1000Pa that chamber, which is evacuated to pressure, and maintains the pressure and carry out the oil removal treatment.The melting of lithium metal waste residue
After liquid heating can not also oil removing, but white oil can be flowed out with lithium metal molten liquid when filters pressing, influence filter efficiency and lithium metal
Quality.
In some embodiments, which comprises lithium metal waste residue is heated to second temperature and is stirred, is stirred
Time is 1min~60min, is layered the lithium metal liquid obtained and solid impurity.When being stirred after the heating of lithium metal waste residue molten liquid
Between can be lower than 1min, but to be stirred the ratio scattered smaller for the solid impurity for wrapping up liquid metal lithium, influences filtering rate；It stirs
60min can be higher than by mixing the time, but energy consumption is excessively high, and time-consuming excessive, filtering rate will not improve.
The utility model heats lithium metal waste residue in the environment of completely cutting off air, and lower melting-point lithium metal melts in slag,
Impurity is still in solid-state, but lithium metal drop is wrapped up or separated by nitride and impurity, melts bulk in lithium, the utility model is by stirring
The interval that can break between the molten group of lithium is mixed, promotes lithium liquid enrichment, (lithium liquid exists in upper, impurity for the layering of realization lithium liquid and impurity
Under), pressure is then applied by mechanical or gas again, molten lithium liquid is allowed to flow out by filter screen, impurity is then intercepted, Ji Kefen
From the lithium metal and impurity in lithium slag.It can not also be stirred after the heating of lithium metal waste residue molten liquid, but solid impurity is still as heated up
Liquid metal lithium is wrapped up as previous, filter efficiency is low when pressure filtration.
Further, after making the lithium metal liquid and solid impurity layering, then 1min~60min is stood.Lithium metal is useless
Time of repose can be lower than 1min after the heating stirring of slag molten liquid, but the layering of lithium metal molten liquid is unobvious, influences filtering rate；
Time of repose can be higher than 60min, but time-consuming excessive, and filtering rate will not improve.
Among some specific implementation cases, the systematic difference method be may particularly include:
Lithium metal waste residue merging waste residue is heated in the heating chamber of container, and is distributed in metal waste residue on partition, institute
Stating partition can move up and down in the heating chamber；
By upper cover in conjunction with waste residue heating container, keep the heating chamber closed, the upper cover has protective gas pipe
Road and out lithium pipeline, and the upper cover lower part is equipped with strainer；
The indoor gas of the heating chamber is thoroughly replaced into protective gas by the protective gas pipeline；
To the waste residue heating container heat, start when lithium metal waste residue temperature therein rises to the first temperature into
Row stirring, and heating chamber is vacuumized, carry out the oil removal treatment；
After completing the oil removal treatment, continues lithium metal waste residue being heated to second temperature and accelerate to stir, make to obtain
The lithium metal liquid and solid impurity obtained is layered, and is stopped stirring later and is simultaneously stood；
Drive partition to move from bottom to top, and cooperate with the strainer, to the lithium metal liquid and solid impurity into
Row filters pressing processing after so that lithium metal liquid is passed through strainer, then is gone out lithium pipeline and is exported to collection lithium tank, and cuts solid impurity by strainer
It stays.
Further, which comprises pressure is applied to lithium metal waste residue molten liquid from lower to upper, forces lithium metal molten
Melt liquid and passes through strainer.Wherein, applying pressure to lithium metal waste residue molten liquid from top to bottom can also force lithium metal molten liquid logical
Filter screen, but since the impurity of lithium metal waste residue molten liquid after stirring and stratification concentrates on lower layer, the net of strainer when filtering
Hole is easy blocking, and filter efficiency is lower.
In some embodiments, the method also includes: after the completion of the described filters pressing processing, pass through the protective gas
Pipeline is blown into protective gas, the lithium liquid of strainer upper space is discharged into completely in collection lithium tank.
In some embodiments, the method also includes: after the completion of the described filters pressing processing, in waste residue heating container
Temperature when being lower than 150 DEG C, pressure recovery to normal pressure, upper cover and waste residue are heated into container and separated, and will be remained on partition
Residual filter cake removes, and then makes partition return to initial position.
Further, the method also includes: by process gas pipes into the heating chamber input service gas,
To drive the partition to move from bottom to top in the heating chamber.
Further, the maximum pressure of the filters pressing processing is 0.5~5MPa.Wherein, promotion is provided by mechanical or gas
The pressure of lithium metal waste residue molten liquid.
In some embodiments, the method also includes: after completing the oil removal treatment, by waste residue heat container,
Process gas pipes, the working gas being connected to process gas pipes heat container and lithium pipeline is both heated to second temperature out
200~400 DEG C, the disturbance, standing, filters pressing processing are successively carried out later.
Further, the protective gas or working gas include more than one inert gases.Further, work
Make gas or protective gas can be mixing for a kind of pure gas not react with lithium or a variety of gases not reacted with lithium
Close gas.
Wherein, as more specifically one of case study on implementation of the utility model, it is useless that lithium metal is carried out using the system
The method for innocent treatment of slag may particularly include following steps:
1. taking lithium metal waste residue, it is put into waste residue heating container；
2. passing through hydraulic pressure lift having protective gas pipeline and installing the strainer of certain pore size on the upper lid of lithium pipeline out
Bar (i.e. upper cover driving mechanism) puts down upper cover, and sealing waste residue heats container, and device is as shown in Figure 1 after sealing；
3. opening gas control unit, atmosphere in container, displacement are heated by the protective gas pipeline displacement waste residue of upper cover
Gas is the inert gases such as argon gas, guarantees that waste residue heating tainer air is thoroughly replaced；
4. closing gas control unit, open heating unit (i.e. temperature control system), container, work gas are heated to waste residue
Body heats container, process gas pipes and lithium pipeline is heated out；
5. opening stirring, and pass through when waste residue heating container interior metal lithium waste residue temperature is increased to 150~250 DEG C
Gas control unit heats container vacuum-pumping to waste residue, and pressure certain time within the scope of 100~1000Pa is maintained to carry out oil removing,
And it opens external oil cooled system system and is recycled；
6. after thorough oil removing, closing gas control unit, 200~400 DEG C being continuously heating to, and accelerate to stir, by stirring
It mixes and molten lithium slag is promoted to be layered；
7. stopping stirring and standing a period of time, gradually pressurizeed by mechanical or gas to partition, carry out filters pressing, is melted
Melt lithium liquid and enter collection lithium tank by going out lithium pipeline across strainer, controlling maximum pressure in the process is 0.5~5MPa；
8. being blown into argon gas by protective gas pipeline, the molten lithium liquid of strainer upper space is discharged into completely in collection lithium tank,
Then stop being blown into high-purity argon gas from protective gas pipeline；
9. stopping heating pressurization, when waste residue heating vessel temp is down to normal pressure lower than 150 DEG C, pressure, mentioned by hydraulic
Rising stem (i.e. upper cover driving mechanism) promotes upper cover, and separation upper cover and waste residue heat container, increases residue filter by bottom compression partition
Cake, then residual filter cake is released with Tui Bing mechanism (i.e. hydraulic thrust cake bar), then partition is put down in pressure release, repeats to handle next time
Process；
10. analysis is the results show that lithium metal is required up to technical grade in collection lithium tank, lithium metal content obviously drops in residual filter cake
Low, up to 80% or more, residual filter cake is substantially reduced the lithium metal rate of recovery with water reactivity.
To sum up, the innocuity disposal system of lithium metal waste residue provided by the utility model is in processing lithium metal waste residue Shi Bufa
Biochemical reaction, does not contact with air, has prevented security risk, and can directly fast and effeciently innoxious recycling lithium metal is useless
Lithium metal in slag, simple process, high financial profit；A small amount of working gas is only consumed when handling lithium metal waste residue, and is worked
Gas can recycle, and will not generate inflammable and poisonous gas, safety and environmental protection.
The technical solution of the utility model is described in further details below with reference to several preferred embodiments and attached drawing, is shown
So, the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.It is practical new based on this
Embodiment in type, those of ordinary skill in the art's every other reality obtained without making creative work
Example is applied, is fallen within the protection scope of the utility model.
It please refers to shown in Fig. 1 and Fig. 2, a kind of harmless treatment of lithium metal waste residue in one exemplary embodiments of the utility model
System includes: waste residue heating container 100, upper cover 200, heating unit 300, gas control unit, 400 (this implementation of rabbling mechanism
Blender is used in example), partition driving mechanism, Tui Bing mechanism 600 (in the present embodiment use hydraulic thrust cake bar), upper cover driving machine
Structure 700 (uses hydraulic pressure lift bar) in the present embodiment.
Wherein, the waste residue heating container 100 has heating chamber 10, is equipped with partition 11, institute in the heating chamber 10
Partition 11 is stated at least for bearing metal lithium waste residue, and peripheral part and the sealing of 10 inner wall surrounding of heating chamber of the partition 11 are matched
It closes.The heating chamber 10 is also connected to external oil cooled system system.
The upper cover 200 lithium pipeline 22 with protective gas pipeline 21 and out, the lithium pipeline 22 out are connected to collection lithium tank,
And 200 lower part of upper cover is equipped with strainer 23, and when the upper cover 200 is combined with waste residue heating container 100, the heating chamber
Room 10 is closed, and the strainer 23 is placed in heating chamber 10.The upper cover driving mechanism 700 (i.e. hydraulic pressure lift bar) is extremely
It is few to separate or combine for driving upper cover 200 to heat container 100 with waste residue.
The heating unit 300 (heating layer is used in the present embodiment) is at least for heating 100 He of container to the waste residue
Lithium pipeline 22 is heated out.The gas control unit be at least used for into the heating chamber 10 input protective gas or
The heating chamber 10 is vacuumized.The rabbling mechanism 400 (i.e. blender) is at least for disturbing in the heating chamber 10
Material.
The partition driving mechanism includes the process gas pipes 500 and process gas pipes being connected to heating chamber 10
The working gas of 500 connections heats container, is at least used to that the partition 11 to be driven to move up and down in heating chamber 10.
The Tui Bing mechanism 600 pushes away cake bar including horizontally disposed, and the partition 11 at least can be in the first station, second
It is moved back and forth between station and 3rd station, first station, second station and 3rd station are set gradually from bottom to top；?
At the second station, the partition 11 can cooperatively form pressure filtration mechanism with strainer 23, the pressure filtration mechanism be at least used for from
Lithium metal liquid is filtered out in the mixture of lithium metal liquid and solid impurity and transports to out lithium pipeline 22, and remains in solid impurity
Residual filter cake 800 is formed on partition 11；As shown in Fig. 2, the residual filter cake 800 is put down with cake bar is pushed away at the 3rd station
Together.That is, can complete in the same chamber for heating, filtering of lithium metal slag etc., required working space can be effectively reduced,
Operating efficiency is improved, may additionally facilitate the promotion of the lithium metal rate of recovery and quality.
The innocuity disposal system structure of lithium metal waste residue provided by the utility model designs advantages of simple, can make lithium metal
Waste residue filters pressing at high temperature, process is rapid, and obtained lithium metal quality is higher, and processing is time-consuming less, and process flow is shorter；Also,
Treated, and filter cake has a safety feature, and reacts slow with air and water.
It should be noted that, in this document, under normal circumstances, the element limited by sentence " including ... " is not arranged
Except there is also other identical elements in including the steps that the element, process, method or experimental facilities.
It should be appreciated that the above preferred embodiment is merely to illustrate the content of the utility model, in addition to this, the utility model
There are also other embodiments, as long as those skilled in the art because of technical inspiration involved by the utility model, and use and equally replace
It changes or technical solution that equivalent deformation mode is formed is all fallen in the protection scope of the utility model.
Claims (7)
1. a kind of innocuity disposal system of lithium metal waste residue, characterized by comprising:
Waste residue heats container, with heating chamber, partition is equipped in the heating chamber, the partition is at least used to carry gold
Belong to lithium waste residue, peripheral part and heating chamber the inner wall surrounding sealing of the partition cooperate；
Upper cover has protective gas pipeline and out lithium pipeline, and the upper cover lower part is equipped with strainer, when the upper cover and gives up
When slag heats container combination, the heating chamber is closed, and the strainer is placed in heating chamber；
Heating unit is at least used to heat container to the waste residue and lithium pipeline heats out；
Gas control unit is at least used to input protective gas into the heating chamber or takes out to the heating chamber true
It is empty；
Rabbling mechanism is at least used to disturb the indoor material of the heating chamber；
Partition driving mechanism is at least used to that the partition to be driven to move up and down in heating chamber；And
Tui Bing mechanism is at least used to remove the residual filter cake remained on partition.
2. the innocuity disposal system of lithium metal waste residue according to claim 1, it is characterised in that: Tui Bing mechanism packet
Include it is horizontally disposed push away cake bar, the partition can at least move back and forth between the first station, second station and 3rd station,
First station, second station and 3rd station are set gradually from bottom to top；At the second station, the partition can
Pressure filtration mechanism is cooperatively formed with strainer, the pressure filtration mechanism is at least used to from the mixture of lithium metal liquid and solid impurity filter out
Lithium metal liquid simultaneously transports to out lithium pipeline, and remains in solid impurity and form residual filter cake on partition；In the 3rd station
Place, the residual filter cake are concordant with cake bar is pushed away.
3. the innocuity disposal system of lithium metal waste residue according to claim 1, it is characterised in that: the partition driving machine
Structure includes the process gas pipes being connected to heating chamber, the working gas being connected to process gas pipes heating container, and institute
It states heating unit and is at least also used to the working gas heating container and process gas pipes heating.
4. the innocuity disposal system of lithium metal waste residue according to claim 2, it is characterised in that: it is described go out lithium pipeline with
Collect the connection of lithium tank.
5. the innocuity disposal system of lithium metal waste residue according to claim 1, it is characterised in that: the heating chamber is also
It is connected to external oil cooled system system.
6. the innocuity disposal system of lithium metal waste residue according to claim 1, it is characterised in that further include: upper cover driving
Mechanism is at least used to that upper cover to be driven to heat container with waste residue separating or combining.
7. the innocuity disposal system of lithium metal waste residue according to claim 1, it is characterised in that: the aperture of the strainer
It is 5 μm~1000 μm.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355506A (en) * | 2018-10-22 | 2019-02-19 | 天齐锂业（江苏）有限公司 | A kind of method for innocent treatment and system of lithium metal waste residue |
| CN113839114A (en) * | 2020-06-24 | 2021-12-24 | 天津中能锂业有限公司 | Lithium metal negative electrode recovery |
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2018
- 2018-10-22 CN CN201821712982.7U patent/CN208976491U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355506A (en) * | 2018-10-22 | 2019-02-19 | 天齐锂业（江苏）有限公司 | A kind of method for innocent treatment and system of lithium metal waste residue |
| CN113839114A (en) * | 2020-06-24 | 2021-12-24 | 天津中能锂业有限公司 | Lithium metal negative electrode recovery |
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