CN208136027U - A kind of ternary anode material precursor preparation process liquid waste treatment system - Google Patents
A kind of ternary anode material precursor preparation process liquid waste treatment system Download PDFInfo
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- CN208136027U CN208136027U CN201820177617.4U CN201820177617U CN208136027U CN 208136027 U CN208136027 U CN 208136027U CN 201820177617 U CN201820177617 U CN 201820177617U CN 208136027 U CN208136027 U CN 208136027U
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Abstract
The utility model relates to a kind of ternary anode material precursor preparation process liquid waste treatment systems, including deamination system and membrane distillation system, the deamination system includes sequentially connected heat exchanger, negative pressure deammoniation tower, gas-liquid separator and ammonia recycling device, the membrane distillation system includes sequentially connected membrane distiller and condenser, the liquid outlet of the gas-liquid separator is connected to the water inlet of the membrane distiller, the gas outlet of the gas-liquid separator is connected to the air inlet of ammonia recycling device, the gas outlet of the membrane distiller is connected to the air inlet of the condenser, the water outlet of the membrane distiller is connected to cesspool.The system can be widely applied to the recycling and administration of ammonia-containing water and the waste water of metal ion in the production technology of ternary material, effective solution the difficult problem of environmental protection, and can recycle ammonia and metal ion therein, to reduce the cost of entire technique.
Description
Technical field
The utility model relates to technical field of sewage, and in particular to a kind of ternary anode material precursor preparation process
Liquid waste treatment system.
Background technique
In terms of anode material for lithium-ion batteries, stratiform nickel-cobalt-manganternary ternary anode material because its specific energy with higher,
The advantages such as good cyclical stability, safety, hypotoxicity and low cost and receive significant attention, it is considered to be it is most potential
Positive electrode.
The coprecipitation that the industrial production of ternary material mainly uses, using NiSO4、MnSO4、CoSO4For raw material, lazy
Property gas shield under input in stirred tank reactor, while by precipitating reagent NaOH input reactor, be complexed using ammonium hydroxide,
Successive reaction is successively filtered after a certain period of time, washs, is dried in vacuo, and obtains ternary material precursor.Then again with LiOH
It is mixed, after being repeatedly sintered, crushing, criticizes, using closing except the operation such as iron, obtain ternary material product.But whole
In a ternary anode material precursor preparation process, especially mother liquor and wash water contain a large amount of metal ions and ammonia, endanger to environment
Evil is very big.
Utility model content
The utility model provides a kind of ternary anode material precursor preparation process liquid waste treatment system, for precursor system
Mother liquor and wash water are handled during standby, using the comprehensive processing technique of " recovery ammonia+membrane distillation ", solve this in actual production
Two kinds of intractable problems of waste water.
The technical solution that the utility model solves above-mentioned technical problem is as follows：It is prepared by a kind of ternary anode material precursor
Journey liquid waste treatment system, including deamination system and membrane distillation system, the deamination system include sequentially connected heat exchanger, negative pressure
Deammoniation tower, gas-liquid separator and ammonia recycling device, the membrane distillation system include sequentially connected membrane distiller and condenser,
The liquid outlet of the gas-liquid separator is connected to the water inlet of the membrane distiller, the gas outlet of the gas-liquid separator and ammonia
The air inlet of gas recovering device is connected to, and the gas outlet of the membrane distiller is connected to the air inlet of the condenser, and the film steams
The water outlet for evaporating device is connected to cesspool.
The utility model has the beneficial effects that：The ternary anode material precursor preparation process liquid waste treatment system utilizes
" recovery ammonia+membrane distillation " can sufficiently handle the waste liquid in tertiary cathode material precursor preparation process, which can be extensive
Applied to the recycling and administration of ammonia-containing water and the waste water of metal ion in the production technology of ternary material, effective solution ring
Problem is protected, and ammonia and metal ion therein can be recycled, to reduce the cost of entire technique.This system can incite somebody to action
The ammonia-containing water generated in ternary material precursor production system can carry out deamination recycling, make the ammonia not reacted again
It recycles, reduces process costs, improve environmental-protecting performance.
Based on the above technical solution, the utility model can also do following improvement.
Further, the deamination system further includes washing ammonia purifier, the air inlet for washing ammonia purifier and the ammonia
The gas outlet of recyclable device is connected to.
Beneficial effect using above-mentioned further scheme is：Ammonia after the ammonia recycling device has a small amount of ammonia
The non-absorbent situation of gas will pollute at this time if surplus air is directly discharged in atmosphere, described to wash ammonia purification
Device can fully absorb remaining ammonia, guarantee that discharge air is free of ammonia, have higher environmental-protecting performance.
Further, the membrane distiller is equipped with exhaust valve and pressure gauge.
Beneficial effect using above-mentioned further scheme is：Membrane distiller pressure is detected in the process, when necessary
It is very necessary to carry out pressure discharge operations, provides guarantee for safety in production.
Further, the water inlet of the membrane distiller is equipped with flowmeter.
Beneficial effect using above-mentioned further scheme is：The flowmeter is set to monitor the useless of the membrane distiller
Water treatment capacity.
Further, the membrane distillation system further includes condensation pond, the water inlet and the condenser in the condensation pond
Water outlet connection.Specifically, the condensation pond is equipped with liquid-level switch and drain valve.
Beneficial effect using above-mentioned further scheme is：The water of recycling after membrane distiller and condenser is completely full
The demand of sufficient industrial water can be recycled, to save production technology cost, provide environmental-protecting performance.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.Specific embodiment of the present utility model is shown in detail by following embodiment and its attached drawing.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is a kind of ternary anode material precursor preparation process liquid waste processing system that an embodiment of the present invention provides
The structural block diagram of system.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing 1, example is served only for explaining this reality
With novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, the utility model provides a kind of ternary anode material precursor preparation process liquid waste treatment system,
Including deamination system and membrane distillation system, the deamination system includes sequentially connected heat exchanger, negative pressure deammoniation tower, gas-liquid separation
Device and ammonia recycling device, the membrane distillation system include sequentially connected membrane distiller and condenser, the gas-liquid separator
Liquid outlet be connected to the water inlet of the membrane distiller, the gas outlet of the gas-liquid separator and ammonia recycling device into
Port connection, the gas outlet of the membrane distiller is connected to the air inlet of the condenser, the water outlet of the membrane distiller and
Cesspool connection.
The ternary anode material precursor preparation process liquid waste treatment system utilizes " recovery ammonia+membrane distillation " can be abundant
The waste liquid in tertiary cathode material precursor preparation process is handled, which can be widely applied to the production technology of ternary material
The recycling and administration of middle ammonia-containing water and the waste water of metal ion, effective solution the difficult problem of environmental protection, and can recycle it
In ammonia and metal ion, to reduce the cost of entire technique.This system can be by ternary material precursor production system
The ammonia-containing water of middle generation can carry out deamination recycling, recycle the ammonia not reacted again, reduce process costs,
Improve environmental-protecting performance.
Preferably, the deamination system further includes washing ammonia purifier, the air inlet for washing ammonia purifier and the ammonia
The gas outlet of recyclable device is connected to.Ammonia after the ammonia recycling device has the non-absorbent situation of a small amount of ammonia,
At this time if surplus air is directly discharged in atmosphere, will pollute, it is described wash ammonia purifier can fully absorb it is surplus
Remaining ammonia guarantees that discharge air is free of ammonia, has higher environmental-protecting performance.
Preferably, the membrane distiller is equipped with exhaust valve and pressure gauge.Membrane distiller pressure is detected in the process, it must
It is very necessary that pressure discharge operations are carried out when wanting, and provide guarantee for safety in production.
Preferably, the water inlet of the membrane distiller is equipped with flowmeter.The flowmeter is set to monitor the film and steam
Evaporate the waste treatment capacity of device.
Preferably, the membrane distillation system further includes condensation pond, the water inlet and the condenser in the condensation pond
Water outlet connection.Specifically, the condensation pond is equipped with liquid-level switch and drain valve.After membrane distiller and condenser
The water of recycling fully meets the demand of industrial water, can be recycled, to save production technology cost, provides the feature of environmental protection
Energy.
Pass through membrane distillation system first in tertiary cathode material precursor waste liquid produced during the preparation process, wherein by changing
The thermogenic action of hot device, can be improved the temperature of waste liquid, so that the dissolubility in waste liquid of ammonia is reduced, by negative pressure deamination
The effect of tower, ammonia is precipitated from waste liquid becomes gas form, separates from waste liquid eventually by gas-liquid separator, the gas-liquid
The gas vent of separator is connected to the air inlet of ammonia recycling device, so that Ammonia recovery recycling is carried out, the ammonia weight
New work is the complexing agent in front-end process.By washing the sky that ammonia purifier ensures to be discharged in the setting of the gas outlet of ammonia recycling device
Any ammonia is free of in gas, so that any pollution will not be caused to atmosphere.
The liquid being discharged in gas-liquid separator contains a large amount of metal ions, it is therefore desirable to it is further processed, thus into
Enter membrane distillation system, the membrane distillation, which refers to, uses dewatering microporous film using film two sides vapor pressure differential as the film of mass transfer driving force point
From process, it can be used for the distillation desalination of water, volatile materials removed to aqueous solution.Such as when the aqueous solution of different temperatures is hydrophobic
When microporous barrier separates, due to the hydrophobicity of film, the aqueous solution of two sides cannot enter the other side through fenestra, but due to warming up side
The water vapor pressure of aqueous solution and membrane interface is higher than cold side, and water vapour will enter cold side from warm side and condense through fenestra, this with
Distillation, mass transfer in conventional distil-lation, condensation process are quite similar, so being called membrane distillation process.Pass through water in membrane distiller
Steam and condensed water commonly referred to as produce water, comply fully with the demand of industrial water, can be recycled.Remaining concentration
Concentration of metal ions is higher in waste water, referred to as concentrated water, can be recycled to wherein salinity, can also be directly discharged to dirt
Water station reduces the blowdown flow rate of enterprise.
The above, the only preferred embodiment of the utility model not make in any form the utility model
Limitation；The those of ordinary skill of all industry can be shown in by specification attached drawing and described above and swimmingly to implement this practical
It is novel；But all those skilled in the art are not departing within the scope of technical solutions of the utility model, using being taken off above
The technology contents shown and the equivalent variations of a little variation, modification and evolution made, are the equivalent embodiment of the utility model；
Meanwhile it the change of all substantial technological any equivalent variationss to the above embodiments according to the utility model, modifying and drilling
Become etc., within the protection scope for still falling within the technical solution of the utility model.
Claims (6)
1. a kind of ternary anode material precursor preparation process liquid waste treatment system, it is characterised in that：Including deamination system and film
Distallation systm, the deamination system include sequentially connected heat exchanger, negative pressure deammoniation tower, gas-liquid separator and Ammonia recovery dress
It sets, the membrane distillation system includes sequentially connected membrane distiller and condenser, the liquid outlet of the gas-liquid separator and institute
The water inlet connection of membrane distiller is stated, the gas outlet of the gas-liquid separator is connected to the air inlet of ammonia recycling device, described
The gas outlet of membrane distiller is connected to the air inlet of the condenser, and the water outlet of the membrane distiller is connected to cesspool.
2. a kind of ternary anode material precursor preparation process liquid waste treatment system according to claim 1, which is characterized in that
The deamination system further includes washing ammonia purifier, the gas outlet of the air inlet for washing ammonia purifier and the ammonia recycling device
Connection.
3. any one of -2 a kind of ternary anode material precursor preparation process liquid waste treatment system according to claim 1,
It is characterized in that, the membrane distiller is equipped with exhaust valve and pressure gauge.
4. any one of -2 a kind of ternary anode material precursor preparation process liquid waste treatment system according to claim 1,
It is characterized in that, the water inlet of the membrane distiller is equipped with flowmeter.
5. any one of -2 a kind of ternary anode material precursor preparation process liquid waste treatment system according to claim 1,
It is characterized in that, the membrane distillation system further includes condensation pond, the water outlet of the water inlet and the condenser in the condensation pond
Mouth connection.
6. a kind of ternary anode material precursor preparation process liquid waste treatment system according to claim 5, which is characterized in that
The condensation pond is equipped with liquid-level switch and drain valve.
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| CN201820177617.4U CN208136027U (en) | 2018-02-01 | 2018-02-01 | A kind of ternary anode material precursor preparation process liquid waste treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218082A (en) * | 2018-02-01 | 2018-06-29 | 四川思达能环保科技有限公司 | A kind of ternary anode material precursor preparation process liquid waste treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218082A (en) * | 2018-02-01 | 2018-06-29 | 四川思达能环保科技有限公司 | A kind of ternary anode material precursor preparation process liquid waste treatment system |
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