CN206970391U - A kind of lithium electrical domain ethylene glycol solvent retracting device - Google Patents
A kind of lithium electrical domain ethylene glycol solvent retracting device Download PDFInfo
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- CN206970391U CN206970391U CN201720827377.3U CN201720827377U CN206970391U CN 206970391 U CN206970391 U CN 206970391U CN 201720827377 U CN201720827377 U CN 201720827377U CN 206970391 U CN206970391 U CN 206970391U
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Abstract
The utility model provides a kind of lithium electrical domain ethylene glycol solvent retracting device, including stirred reactor, milk of lime feedway, filter, cation exchanger, anion exchanger, first distilling apparatus, after-fractionating device and ethylene glycol recycling can, the entrance of stirred reactor is connected with the outlet of lithium electricity production solvent waste water, the outlet of milk of lime feedway is connected by pipeline with stirred reactor, milk of lime is housed in milk of lime feedway, the outlet of stirred reactor, filter, cation exchanger, anion exchanger, first distilling apparatus and after-fractionating device are sequentially connected, the outlet of after-fractionating device is connected with ethylene glycol recycling can.This ethylene glycol solvent retracting device is reclaimed to the ethylene glycol solvent used in electrode material of lithium battery production process, and environmental protection saves industrial chemicals again, reduces production cost；It is high to reclaim obtained ethylene glycol purity；And save the energy of removal process.
Description
Technical field
The utility model belongs to devil liquor recovery technical field, reclaims and fills more particularly, to a kind of lithium electrical domain ethylene glycol solvent
Put.
Background technology
Lithium battery has that energy ratio is higher, and service life length, rated voltage is high, in light weight, high/low temperature strong adaptability and
The advantages that green, turn into most potential battery types now.
In lithium battery manufacturing field, LiFePO 4 material because with raw material sources are extensive, cheap, heat endurance is good,
The characteristics of, good cycle higher than energy, prominent and environmentally safe security performance and enjoy favor, be it is most potential just
One of pole material, in the whole flow process for producing lithium iron phosphate positive material, can often use organic solvent, such as ethylene glycol, its for
The processing of solvent slop after production is often directly drained, on the one hand the direct discharge of solvent slop can cause dirt to surrounding environment
Dye, on the other hand, ethylene glycol is important industrial chemicals, the ethylene glycol of recovery can direct reuse in production process, directly discharge
It also result in the waste of industrial chemicals, the increase of production cost.
The content of the invention
Problem to be solved in the utility model is to provide a kind of lithium electrical domain ethylene glycol solvent retracting device, to lithium battery
Ethylene glycol solvent in the Material Manufacturing Process of pole is reclaimed, and environmental protection and reduces production cost.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of lithium electrical domain ethylene glycol solvent
Retracting device, including stirred reactor, milk of lime feedway, filter, cation exchanger, anion exchanger, first
Distilling apparatus, after-fractionating device and ethylene glycol recycling can, the outlet of the entrance and lithium electricity production solvent waste water of stirred reactor
Connection, the outlet of milk of lime feedway are connected by pipeline with stirred reactor, and milk of lime is housed in milk of lime feedway,
Outlet, filter, cation exchanger, anion exchanger, the first distilling apparatus and the after-fractionating device of stirred reactor
It is sequentially connected, the outlet of after-fractionating device is connected with ethylene glycol recycling can.
In technical scheme, it is preferred that the first distilling apparatus includes first rectifying column, the first reboiler and the first condenser,
The outlet of anion exchanger and the charging aperture of first rectifying column connect, and the bottom of towe liquid-phase outlet of first rectifying column is divided into two-way,
The entrance with the first reboiler is connected all the way, and another way is connected with after-fractionating device, the outlet of the first reboiler and the first essence
The gas phase reflux inlet connection of tower is evaporated, the top gaseous phase outlet of first rectifying column is divided into two-way, entered all the way with first condenser
Mouth connection, another way are connected with the first waste gas outlet, and the outlet of the first condenser and the liquid-phase reflux entrance of first rectifying column connect
Connect.
In technical scheme, it is preferred that after-fractionating device includes Second distillation column, the second reboiler and the second condenser,
The bottom of towe liquid-phase outlet of first rectifying column and the charging aperture of Second distillation column connect, and the bottom of towe liquid-phase outlet of Second distillation column is divided into
Two-way, all the way the entrance with the second reboiler be connected, another way is connected with ethylene glycol recycling can, the outlet of the second reboiler and the
Two rectifying columns gas phase reflux inlet connection, Second distillation column top gaseous phase outlet is divided into two-way, all the way with the second condenser
Entrance connection, another way is connected with the second waste gas outlet, and the outlet of the second condenser and the liquid-phase reflux of Second distillation column enter
Mouth connection.
In technical scheme, it is preferred that also enter including waste gas absorption tank, the thermal medium of the first waste gas outlet and the first reboiler
Mouth connection, the thermal medium outlet of the first reboiler are connected with waste gas absorption tank.
In technical scheme, it is preferred that the second waste gas outlet is connected with the thermal medium entrance of the second reboiler, the second reboiler
Thermal medium outlet be connected with waste gas absorption tank.
In technical scheme, it is preferred that milk of lime feedway includes lime white tank and feed pump, the entrance and stone of feed pump
The newborn tank connection of ash, the outlet of feed pump is connected by pipeline with stirred reactor.
The utility model has the advantages and positive effects of：
1. the ethylene glycol solvent used in pair electrode material of lithium battery production process is reclaimed, not only protected environment but also
Industrial chemicals has been saved, has reduced production cost；
2. solvent waste water is handled by removing phosphate anion, heavy-metal ion removal, two stage rectification process, most
The ethylene glycol purity obtained eventually is high, does not contain phosphate anion and heavy metal ion, recycles efficiency high；
3. being reclaimed in processing procedure to the heat energy of high-temp waste gas, the energy in production process is further saved.
Brief description of the drawings
Fig. 1 is the structural representation of ethylene glycol solvent retracting device of the present utility model.
In figure：
1st, stirred reactor 2, milk of lime feedway 3, filter
4th, cation exchanger 5, anion exchanger 6, distilling apparatus
7th, distilling apparatus 8, ethylene glycol recycling can 9, waste gas absorption tank
21st, lime white tank 22, feed pump 61, rectifying column
62nd, reboiler 63, condenser 64, waste gas outlet
71st, rectifying column 72, reboiler 73, condenser
74th, waste gas outlet
Embodiment
The utility model embodiment is described further below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of lithium electrical domain ethylene glycol solvent retracting device described in the present embodiment, including stirred reactor
1st, milk of lime feedway 2, filter 3, cation exchanger 4, anion exchanger 5, distilling apparatus 6, distilling apparatus 7 and second
Glycol recycling can 8, the entrance of stirred reactor 1 are connected with the outlet of lithium electricity production solvent waste water, and milk of lime feedway 2 includes
Lime white tank 21 and feed pump 22, the entrance of feed pump 22 are connected with lime white tank 21, the outlet of feed pump 22 by pipeline with
Stirred reactor 1 is connected, and milk of lime is housed in milk of lime feedway 2, and outlet and the entrance of filter 3 of stirred reactor 1 connect
Connect, the outlet of filter 3 is connected with the entrance of cation exchanger 4, outlet and the anion exchanger 5 of cation exchanger 4
Entrance connection, the outlet of anion exchanger 5 is connected with the entrance of distilling apparatus 6, the outlet of distilling apparatus 6 and distilling apparatus
7 entrance connection, the outlet of distilling apparatus 7 is connected with ethylene glycol recycling can 8.
Contain the metal ion such as part phosphate radical and iron, nickel, copper because lithium battery is produced in solvent waste water, it is therefore desirable to right
This part ion is handled.Milk of lime feedway 2 is that milk of lime, stirred reactor 1 are constantly provided in stirred reactor 1
In be constantly passed through lithium electricity production solvent waste water and milk of lime, due to part phosphate radical in solvent waste water be present, after adding milk of lime
Phosphate radical can be precipitated, then the filtering by filter 3, precipitation is removed, can finally obtain disposing the useless of phosphate radical
Water, H type cationic ion-exchange resins is loaded with cation exchanger 4, the composition of H type cationic ion-exchange resins is people in the art
Member according to prior art can clear and definite composition, H type anion exchange resin is loaded with anion exchanger 5, H types anion is handed over
The composition for changing resin be those skilled in the art according to prior art can clear and definite composition, dispose the solvent after phosphate radical and give up
Water passes through cation exchanger 4, and the metal cation in waste water is enriched with by H types strong-acid cation-exchange resin, and displaces hydrogen
Ion, then waste water pass through anion exchanger 5, the hydrogen ion in waste water is enriched with by anion exchange resin, so as to go dehydrogenation
Ion, obtain disposing the waste water of metal ion.Waste water through disposing phosphate radical and metal ion enters quilt in distilling apparatus 6
Predistillation, the water in waste water and other organic matters are subjected to initial gross separation with ethylene glycol, then passes in distilling apparatus 7 and enters one
Step distillation, obtains the higher ethylene glycol solution of purity, and be recycled in ethylene glycol recycling can 8.
Preferred scheme, distilling apparatus 6 include rectifying column 61, reboiler 62 and condenser 63, the outlet of anion exchanger 5
It is connected with the charging aperture of rectifying column 61, the bottom of towe liquid-phase outlet of rectifying column 61 is divided into two-way, and the entrance with reboiler 62 connects all the way
Connect, another way is connected with distilling apparatus 7, and the outlet of reboiler 62 is connected with the gas phase reflux inlet of rectifying column 61, rectifying column 61
Top gaseous phase outlet be divided into two-way, the entrance with condenser 63 is connected all the way, and another way is connected with waste gas outlet 64, condenser
63 outlet is connected with the liquid-phase reflux entrance of rectifying column 61.
Distilling apparatus 7 includes rectifying column 71, reboiler 72 and condenser 73, the bottom of towe liquid-phase outlet of rectifying column 61 and rectifying
The charging aperture connection of tower 71, the bottom of towe liquid-phase outlet of rectifying column 71 are divided into two-way, and the entrance with reboiler 72 is connected all the way, another
Road is connected with ethylene glycol recycling can 8, and the outlet of reboiler 72 is connected with the gas phase reflux inlet of rectifying column 71, the tower of rectifying column 71
Top gaseous phase outlet is divided into two-way, and the entrance with condenser 73 is connected all the way, and another way is connected with waste gas outlet 74, condenser 73
Outlet is connected with the liquid-phase reflux entrance of rectifying column 71.
Two-step distillation device is carried out using the rectifying column with high separating efficiency, and preliminary rectifying is carried out through rectifying column 61
Afterwards, then through rectifying column 62 further rectifying is carried out, finally can obtain the higher ethylene glycol of purity, production process can be back to.
In preferred scheme, in addition to waste gas absorption tank 9, waste gas outlet 64 are connected with the thermal medium layer entrance of reboiler 62,
The thermal medium layer outlet of reboiler 62 is connected with waste gas absorption tank 9, so as to make full use of the high temperature after rectifying column 61
Heat in waste gas, save the energy and environmental protection.
In preferred scheme, waste gas outlet 74 is connected with the thermal medium layer entrance of reboiler 72, the thermal medium layer of reboiler 72
Outlet is connected with waste gas absorption tank 9, so as to make full use of the heat in the high-temp waste gas after rectifying column 71, saves energy
Source and environmental protection.
Lithium electrical domain ethylene glycol solvent retracting device described in the present embodiment has the advantage that：To lithium electricity
The ethylene glycol solvent used in the electrode material production process of pond is reclaimed, and has not only been protected environment but also has been saved industrial chemicals,
Reduce production cost；Through removal phosphate anion, heavy-metal ion removal, two stage rectification process to solvent waste water at
Reason, the ethylene glycol purity finally given is high, does not contain phosphate anion and heavy metal ion, recycles efficiency high；Processing procedure
In the heat energy of high-temp waste gas is reclaimed, further save the energy in production process.
One embodiment of the present utility model is described in detail above, but the content is only of the present utility model
Preferred embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.It is all to be made according to present utility model application scope
Equivalent change with improve etc., all should still belong within patent covering scope of the present utility model.
Claims (6)
- A kind of 1. lithium electrical domain ethylene glycol solvent retracting device, it is characterised in that：Including stirred reactor, milk of lime supply dress Put, filter, cation exchanger, anion exchanger, the first distilling apparatus, after-fractionating device and ethylene glycol recycling can, The entrance of the stirred reactor is connected with the outlet of lithium electricity production solvent waste water, and the outlet of the milk of lime feedway passes through Pipeline connects with the stirred reactor, and milk of lime is housed in the milk of lime feedway, the outlet of the stirred reactor, The filter, the cation exchanger, the anion exchanger, first distilling apparatus and after-fractionating dress Put and be sequentially connected, the outlet of the after-fractionating device is connected with the ethylene glycol recycling can.
- 2. ethylene glycol solvent retracting device according to claim 1, it is characterised in that：First distilling apparatus includes the One rectifying column, the first reboiler and the first condenser, the outlet and the charging of the first rectifying column of the anion exchanger Mouth connection, the bottom of towe liquid-phase outlet of the first rectifying column are divided into two-way, and the entrance with first reboiler is connected all the way, separately It is connected all the way with the after-fractionating device, the outlet of first reboiler and the gas phase reflux inlet of the first rectifying column Connection, the top gaseous phase outlet of the first rectifying column are divided into two-way, and the entrance with first condenser is connected all the way, another Road is connected with the first waste gas outlet, and the outlet of first condenser is connected with the liquid-phase reflux entrance of the first rectifying column.
- 3. ethylene glycol solvent retracting device according to claim 2, it is characterised in that：The after-fractionating device includes the Two rectifying columns, the second reboiler and the second condenser, bottom of towe liquid-phase outlet and the Second distillation column of the first rectifying column Charging aperture connection, the bottom of towe liquid-phase outlet of the Second distillation column is divided into two-way, all the way with the entrance of second reboiler Connection, another way are connected with the ethylene glycol recycling can, the outlet of second reboiler and the gas phase of the Second distillation column Reflux inlet connects, and the outlet of the top gaseous phase of the Second distillation column is divided into two-way, all the way with the entrance of second condenser Connection, another way are connected with the second waste gas outlet, the outlet of second condenser and the liquid-phase reflux of the Second distillation column Entrance connects.
- 4. ethylene glycol solvent retracting device according to claim 3, it is characterised in that：Also include waste gas absorption tank, it is described First waste gas outlet is connected with the thermal medium entrance of first reboiler, the thermal medium outlet of first reboiler with it is described Waste gas absorption tank connects.
- 5. ethylene glycol solvent retracting device according to claim 4, it is characterised in that：Second waste gas outlet with it is described The thermal medium entrance connection of second reboiler, the thermal medium outlet of second reboiler are connected with the waste gas absorption tank.
- 6. according to any described ethylene glycol solvent retracting devices of claim 1-5, it is characterised in that：The milk of lime supply dress Put including lime white tank and feed pump, the entrance of the feed pump is connected with the lime white tank, and the outlet of the feed pump leads to Pipeline is crossed to be connected with the stirred reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720827377.3U CN206970391U (en) | 2017-07-10 | 2017-07-10 | A kind of lithium electrical domain ethylene glycol solvent retracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720827377.3U CN206970391U (en) | 2017-07-10 | 2017-07-10 | A kind of lithium electrical domain ethylene glycol solvent retracting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206970391U true CN206970391U (en) | 2018-02-06 |
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ID=61401984
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720827377.3U Expired - Fee Related CN206970391U (en) | 2017-07-10 | 2017-07-10 | A kind of lithium electrical domain ethylene glycol solvent retracting device |
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| Country | Link |
|---|---|
| CN (1) | CN206970391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504872A (en) * | 2022-02-15 | 2022-05-17 | 北京袭明科技有限公司 | Method and device for producing high-purity electronic grade ethylene glycol |
| CN114797263A (en) * | 2022-05-09 | 2022-07-29 | 宁夏紫光天化蛋氨酸有限责任公司 | Method for treating ethylene glycol secondary refrigerant |
-
2017
- 2017-07-10 CN CN201720827377.3U patent/CN206970391U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504872A (en) * | 2022-02-15 | 2022-05-17 | 北京袭明科技有限公司 | Method and device for producing high-purity electronic grade ethylene glycol |
| CN114797263A (en) * | 2022-05-09 | 2022-07-29 | 宁夏紫光天化蛋氨酸有限责任公司 | Method for treating ethylene glycol secondary refrigerant |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20200710 |
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| CF01 | Termination of patent right due to non-payment of annual fee |