CN206751588U - A kind of processing system of tertiary cathode material production waste water - Google Patents
A kind of processing system of tertiary cathode material production waste water Download PDFInfo
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- CN206751588U CN206751588U CN201720369038.5U CN201720369038U CN206751588U CN 206751588 U CN206751588 U CN 206751588U CN 201720369038 U CN201720369038 U CN 201720369038U CN 206751588 U CN206751588 U CN 206751588U
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Abstract
A kind of processing system of tertiary cathode material production waste water is the utility model is related to, including：Membrane separation device, deamination waste water is obtained for tertiary cathode material production waste water to be carried out into UF membrane；Equipment for separating liquid from solid, for deamination waste water filtering to be obtained into supernatant and precipitation, the equipment for separating liquid from solid connects with membrane separation device；Evaporated crystallization device, for supernatant evaporative crystallization to be obtained into sodium sulphate, the evaporated crystallization device connects with equipment for separating liquid from solid.Processing system of the present utility model carries out advanced treatment and reclamation to tertiary cathode material production waste water, effectively solves the process problem of tertiary cathode material production waste water, reclaims ammonia, heavy metal and sodium sulphate resource in waste water, Water Sproading rate is high, realizes zero-emission.
Description
Technical field
It the utility model is related to a kind of Sewage advanced treatment technical field, and in particular to a kind of tertiary cathode material production is useless
The processing system of water.
Background technology
With petroleum resources gradually decrease and huge environmental pollution that traditional energy is brought, develop renewable green energy resource
And energy storage material turns into the important directions of global evolution.Lithium rechargeable battery has high-energy-density, stable work in work, matter
The advantage such as light is measured, is the emphasis of high-power power battery exploitation.
At present, the anode material for lithium-ion batteries of successful commercialization has cobalt acid lithium, LiMn2O4 and LiFePO4.Cobalt acid lithium and
LiMn2O4 specific discharge capacity is small, and chemical stability is poor, it is difficult to the positive electrode as high-power dynamic lithium battery.LiFePO4
The shortcomings of theoretical and actual specific capacity is small and electric conductivity is poor well still be present in heat endurance.Nickel-cobalt-manganternary ternary anode material is made
For Olivine-type Cathode Material in Li-ion Batteries, there is the advantages that discharge capacity is high, and cycle life is good, safe, and cost is cheap, be
Most potential positive electrode.
The preparation method of tertiary cathode material mainly has high temperature solid-state method, sol-gal process, chemical coprecipitation, hydro-thermal conjunction
Cheng Fa, spray drying process etc., wherein coprecipitation synthesis product component uniformity are good, and condition is easily controlled, simple to operate,
Industrially mass produce.Chemical coprecipitation is usually that chemical raw material is mixed with solution state, and is added into solution
Enter appropriate precipitating reagent, make each component well mixed in solution be co-precipitated out according to metering ratio, or in the solution first
Reaction precipitation goes out a kind of intermediate product, then its calcining and decomposing is prepared fine powder.Chemical coprecipitation is being washed and separated
Process can produce a large amount of alkaline waste water (PH>9), ammonia-nitrogen content is up to tens of gram per liters and forms complex compound with heavy metal.Separately
Outside, due to containing substantial amounts of sodium sulfate salt, except being still unable to qualified discharge after ammonia, and can waste of resources is caused.
Therefore, in order to realize the qualified discharge of such waste water and recycling recovery, it is badly in need of one kind and is directed to tertiary cathode material
The zero-emission processing system of material production waste water.
Utility model content
The purpose of this utility model is to be improved for disadvantage mentioned above, there is provided a kind of tertiary cathode material produces waste water
Processing system, including：Membrane separation device, deamination waste water is obtained for tertiary cathode material production waste water to be carried out into UF membrane；
Equipment for separating liquid from solid, for deamination waste water filtering to be obtained into supernatant and precipitation, the equipment for separating liquid from solid and membrane separation device
Connection；Evaporated crystallization device, for supernatant evaporative crystallization to be obtained into sodium sulphate, the evaporated crystallization device fills with separation of solid and liquid
Put connection.Processing system of the present utility model carries out advanced treatment and reclamation to tertiary cathode material production waste water, effectively solves three
The process problem of first positive electrode production waste water, reclaims ammonia, heavy metal and sodium sulphate resource in waste water, and Water Sproading rate is high, realizes
Zero-emission.
The utility model is achieved through the following technical solutions：
A kind of processing system of tertiary cathode material production waste water, including：
Membrane separation device, deamination waste water is obtained for tertiary cathode material production waste water to be carried out into UF membrane；
Equipment for separating liquid from solid, for deamination waste water filtering to be obtained into supernatant and precipitation, the equipment for separating liquid from solid and film
Separator connects；
Evaporated crystallization device, for supernatant evaporative crystallization to be obtained into sodium sulphate, the evaporated crystallization device and solid-liquid point
Connected from device.
Preferably, the membrane separation device, which is provided with, is used for the shell of tertiary cathode material production waste water input membrane separation device
Journey entrance, the shell-side outlet for deamination waste water to be discharged to membrane separation device, the tube side for sulfuric acid to be inputted to membrane separation device
Entrance and the tube side for ammonium sulfate to be discharged to membrane separation device export, tube side outlet and the solid-liquid of membrane separation device
Separator connects.
Preferably, the processing system also includes being used for the wastewater trough for storing tertiary cathode material production waste water, described useless
Tank connects with membrane separation device.
Preferably, in addition to for storing flow container after the deamination of deamination waste water, flow container fills with separation of solid and liquid after the deamination
Put connection.
Preferably, in addition to concentration liquid bath and plate and frame filter press, the equipment for separating liquid from solid include supernatant outlet and sunk
Form sediment and export, the precipitation outlet connects with concentration liquid bath, and the concentration liquid bath connects with plate and frame filter press, the plate and frame filter press
Provided with filtrate (liquid and sludge outlet, the filtrate (liquid of the plate and frame filter press is connected with equipment for separating liquid from solid or the sheet frame
The filtrate (liquid of filter press connects with flow container after deamination.
It is highly preferred that the filter residue for also including being used to obtain plate and frame filter press carries out the sour fluid bowl of sour dissolving, the acid is molten
Groove connects with the sludge outlet of plate and frame filter press.
Preferably, the evaporated crystallization device includes heating chamber, vaporization chamber and the crystallizing tank being sequentially communicated.
It is highly preferred that the evaporated crystallization device also includes vapour compression machine, vaporization chamber is provided with steam (vapor) outlet and supersaturation
Taphole, the steam (vapor) outlet of the vaporization chamber connect with vapour compression machine, and the vapour compression machine connects with heating chamber again, institute
The supersaturated solution outlet for stating vaporization chamber connects with crystallizing tank.
It is highly preferred that also including the centrifuge and drier being sequentially communicated, the crystallizing tank exports provided with solid sodium sulfate
And taphole, the solid sodium sulfate outlet of crystallizing tank connect with centrifuge, the liquid outlet of crystallizing tank connects with heating chamber.
Preferably, in addition to before evaporation flow container, the equipment for separating liquid from solid connect with flow container before evaporation.
Preferably, in addition to it is used for the NaOH solution tank NaOH for storing ammonium sulfate, the NaOH solution tank NaOH connects with membrane separation device.
Compared with prior art, processing system of the present utility model has following technique effect：
(1) the utility model is combined by using membrane separation device, equipment for separating liquid from solid and evaporated crystallization device, to three
First positive electrode production waste water carries out advanced treatment and reclamation, reclaims ammonia, heavy metal and sodium sulphate resource in waste water, Water Sproading rate
Height, realize zero-emission；
(2) membrane separation device processing tertiary cathode material production waste water in the utility model, simple and easy, energy consumption is low；MVR
Evaporative crystallization only needs very small amount steam, greatly drops operating cost, reduces environmental pollution；There is no waste hot steam discharge, save
Effect is very notable；
(3) the utility model investment is small, and operating cost is low, and equipment is simple, easy to maintain；
(4) the utility model produces without harmful byproduct, non-secondary pollution.
Brief description of the drawings
Fig. 1 is the schematic diagram of the processing system of tertiary cathode material production waste water of the present utility model.
Reference：
1- membrane separation devices；
2- equipment for separating liquid from solid；
3- evaporated crystallization devices；31- heating chambers；32- vaporization chambers；33- crystallizing tanks；34- vapour compression machines；
4- wastewater troughs；
Flow container after 5- deaminations；
6- concentrates liquid bath；
7- plate and frame filter press；
8- acid fluid bowls；
9- centrifuges；
10- driers；
Flow container before 11- evaporations；
12- NaOH solution tank NaOHs.
Embodiment
The utility model is expanded on further with reference to specific embodiment, it should be appreciated that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of protection of the utility model.
A kind of processing system of tertiary cathode material production waste water, as shown in figure 1, including：
Membrane separation device 1, deamination waste water is obtained for tertiary cathode material production waste water to be carried out into UF membrane；
Equipment for separating liquid from solid 2, for deamination waste water filtering to be obtained into supernatant and precipitation, the equipment for separating liquid from solid 2 with
Membrane separation device 1 connects；
Evaporated crystallization device 3, for supernatant evaporative crystallization to be obtained into sodium sulphate, the evaporated crystallization device 3 and solid-liquid
Separator 2 connects.
Hydrophobic hollow fiber film can be used in the membrane separation device.
The equipment for separating liquid from solid is liquid filter, can be Sean filter, such as Sean CNII2200 filters.
In a preferred embodiment, the membrane separation device 1 is provided with defeated for tertiary cathode material to be produced into waste water
Enter the shell side inlet of membrane separation device, the shell-side outlet for deamination waste water to be discharged to membrane separation device, for sulfuric acid to be inputted
The tube-side inlet of membrane separation device and the tube side for ammonium sulfate to be discharged to membrane separation device export, membrane separation device 1
Tube side outlet connects with the equipment for separating liquid from solid 2.Tertiary cathode material can be back to from the ammonium sulfate of tube side outlet discharge
In material manufacturing technique.
In a preferred embodiment, in addition to for storing flow container 5 after the deamination of deamination waste water, liquid after the deamination
Tank 5 connects with equipment for separating liquid from solid 2.
In a preferred embodiment, in addition to concentration liquid bath 6 and plate and frame filter press 7, the equipment for separating liquid from solid 2 wrap
Include supernatant outlet and precipitation exports, the precipitation outlet connects with concentration liquid bath 6, the concentration liquid bath 6 and plate and frame filter press 7
Connection, the plate and frame filter press 7 are provided with filtrate (liquid and sludge outlet, filtrate (liquid and the solid-liquid point of the plate and frame filter press 7
Connected from device 2 or the filtrate (liquid of the plate and frame filter press 7 connects with flow container after deamination 5.
In a preferred embodiment, in addition to the filter residue for plate and frame filter press 7 to be obtained carries out the acid of sour dissolving
Fluid bowl 8, the sour fluid bowl 8 connect with the sludge outlet of plate and frame filter press 7, and filter residue can be used for tertiary cathode material after sulfuric acid dissolution
In material manufacturing technique.
In a preferred embodiment, the evaporated crystallization device 3 includes heating chamber 31, the vaporization chamber 32 being sequentially communicated
With crystallizing tank 33.
In a preferred embodiment, the evaporated crystallization device 3 also includes vapour compression machine 34, and vaporization chamber 32 is provided with
Steam (vapor) outlet and supersaturated solution outlet, the steam (vapor) outlet of the vaporization chamber 32 connect with vapour compression machine 34, the vapour pressure
Contracting machine 34 connects with heating chamber 31 again, and the supersaturated solution outlet of the vaporization chamber 32 connects with crystallizing tank 33.Vaporization chamber produces
Steam be compressed and be back to heating chamber and continue to heat, added without live steam, obtained evaporation condensed water can be used for point
From in absorbing liquid preparation or tertiary cathode material production technology.
In a preferred embodiment, in addition to the centrifuge 9 and drier 10 that are sequentially communicated, the crystallizing tank 33 are set
There is solid sodium sulfate to export and taphole, the solid sodium sulfate outlet of crystallizing tank 33 connect with centrifuge 9, the liquid of crystallizing tank
Outlet connects with heating chamber 31.
In a preferred embodiment, in addition to evaporation before flow container 11, the equipment for separating liquid from solid 2 with evaporation before flow container
11 connections.
In a preferred embodiment, one in also including the following features or two：
1) processing system also includes being used for the wastewater trough 4 for storing tertiary cathode material production waste water, the wastewater trough 4
Connected with membrane separation device 1；
2) processing system also includes being used for the NaOH solution tank NaOH 12 for storing ammonium sulfate, the NaOH solution tank NaOH 12 and UF membrane
Device 1 connects.
Carry out handling tertiary cathode material production waste water using any of the above-described processing system：
1) tertiary cathode material production waste water is passed through to the shell side of membrane separation device, absorbing liquid is passed through the pipe of membrane separation device
Journey, the absorbing liquid are sulfuric acid, obtain ammonium sulfate and deamination waste water；
Gaseous ammonia can mutually enter pipe through the micropore on film surface from the waste water of shell side in tertiary cathode material production waste water
The acid of journey absorbs phase, is absorbed by acid solution and becomes ammonium sulfate；
2) the deamination waste water that step 1) obtains is filtered through equipment for separating liquid from solid, obtains supernatant and precipitation；
The complexing of deamination heavy metal ions in wastewater, which destroys, forms precipitation；
3) supernatant that step 2) obtains is obtained into sodium sulphate through evaporated crystallization device evaporative crystallization.
The supernatant that step 2) is obtained enters oven heats to more than solution boiling point, is carried out subsequently into vaporization chamber
Supersaturation is evaporated to, sodium sulphate is finally separated out in crystallizing tank, through centrifugal drying, obtains sodium sulphate.
Na in tertiary cathode material production waste water2SO4Concentration is 50-150g/L, NH3- N concentration is 500-10000mg/L,
M2+Concentration is 50-500mg/L, M2+Concentration is Ni2+、Co2+And Mn2+Total concentration, pH be 11~13.
It is noted that all those skilled in the art, in the case where not departing from spirit and scope of the present utility model,
It is this practicality when the equivalent variations for a little variation, modification and evolution made using disclosed above technology contents
New equivalent embodiment；Meanwhile all any equivalent changes made according to substantial technological of the present utility model to above-described embodiment
The variation, modification and evolution of change, in the range of still falling within the technical solution of the utility model.
Claims (11)
- A kind of 1. processing system of tertiary cathode material production waste water, it is characterised in that including：Membrane separation device (1), deamination waste water is obtained for tertiary cathode material production waste water to be carried out into UF membrane；Equipment for separating liquid from solid (2), for deamination waste water filtering to be obtained into supernatant and precipitation, the equipment for separating liquid from solid (2) with Membrane separation device (1) connects；Evaporated crystallization device (3), for supernatant evaporative crystallization to be obtained into sodium sulphate, the evaporated crystallization device (3) and solid-liquid Separator (2) connects.
- 2. processing system according to claim 1, it is characterised in that the membrane separation device (1), which is provided with, to be used for ternary Positive electrode production waste water inputs the shell side inlet of membrane separation device, gone out for deamination waste water to be discharged to the shell side of membrane separation device Mouth, the tube-side inlet for sulfuric acid to be inputted to membrane separation device and the tube side for ammonium sulfate to be discharged to membrane separation device go out Mouthful, the tube side outlet of membrane separation device (1) connects with the equipment for separating liquid from solid (2).
- 3. processing system according to claim 1, it is characterised in that also include useless for storing tertiary cathode material production The wastewater trough (4) of water, the wastewater trough (4) connect with membrane separation device (1).
- 4. processing system according to claim 1, it is characterised in that liquid after the deamination also including being used to store deamination waste water Tank (5), flow container (5) connects with equipment for separating liquid from solid (2) after the deamination.
- 5. the processing system according to claim 1 or 4, it is characterised in that also include concentration liquid bath (6) and plate and frame filter press (7), the equipment for separating liquid from solid (2) includes supernatant outlet and precipitation outlet, and the precipitation outlet connects with concentration liquid bath (6) Logical, the concentration liquid bath (6) connects with plate and frame filter press (7), and the plate and frame filter press (7) is provided with filtrate (liquid and filter residue goes out Mouthful, the filtrate (liquid of the plate and frame filter press (7) is connected with equipment for separating liquid from solid (2) or the filter of the plate and frame filter press (7) Liquid outlet connects with flow container after deamination (5).
- 6. processing system according to claim 5, it is characterised in that also include being used for obtain plate and frame filter press (7) Filter residue carries out the sour fluid bowl (8) of sour dissolving, and the sour fluid bowl (8) connects with the sludge outlet of plate and frame filter press (7).
- 7. processing system according to claim 1, it is characterised in that the evaporated crystallization device (3) includes being sequentially communicated Heating chamber (31), vaporization chamber (32) and crystallizing tank (33).
- 8. processing system according to claim 7, it is characterised in that the evaporated crystallization device (3) also includes vapour pressure Contracting machine (34), vaporization chamber (32) is provided with steam (vapor) outlet and supersaturated solution exports, the steam (vapor) outlet of the vaporization chamber (32) and steaming Vapour compressor (34) connects, and the vapour compression machine (34) connects with heating chamber (31) again, the supersaturation of the vaporization chamber (32) Taphole connects with crystallizing tank (33).
- 9. processing system according to claim 7, it is characterised in that also include centrifuge (9) and the drying being sequentially communicated Device (10), the crystallizing tank (33) are provided with solid sodium sulfate outlet and taphole, the solid sodium sulfate outlet of crystallizing tank (33) Connected with centrifuge (9), the liquid outlet of crystallizing tank connects with heating chamber (31).
- 10. processing system according to claim 1, it is characterised in that also include flow container (11) before evaporation, the solid-liquid point Connected from device (2) with flow container (11) before evaporation.
- 11. processing system as claimed in claim 1, it is characterised in that also include being used for the NaOH solution tank NaOH for storing ammonium sulfate (12), the NaOH solution tank NaOH (12) connects with membrane separation device (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720369038.5U CN206751588U (en) | 2017-04-10 | 2017-04-10 | A kind of processing system of tertiary cathode material production waste water |
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| CN201720369038.5U CN206751588U (en) | 2017-04-10 | 2017-04-10 | A kind of processing system of tertiary cathode material production waste water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109678287A (en) * | 2019-01-17 | 2019-04-26 | 杉杉能源（宁夏）有限公司 | A kind of recycling and processing device and method of nickelic positive electrode water lotion |
| CN117658366A (en) * | 2023-12-13 | 2024-03-08 | 宜宾光原锂电材料有限公司 | Ternary precursor wastewater and waste treatment method and treatment system |
-
2017
- 2017-04-10 CN CN201720369038.5U patent/CN206751588U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109678287A (en) * | 2019-01-17 | 2019-04-26 | 杉杉能源（宁夏）有限公司 | A kind of recycling and processing device and method of nickelic positive electrode water lotion |
| CN117658366A (en) * | 2023-12-13 | 2024-03-08 | 宜宾光原锂电材料有限公司 | Ternary precursor wastewater and waste treatment method and treatment system |
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