CN110451587A - A kind of ternary precursor preparation system - Google Patents
A kind of ternary precursor preparation system Download PDFInfo
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- CN110451587A CN110451587A CN201910785739.0A CN201910785739A CN110451587A CN 110451587 A CN110451587 A CN 110451587A CN 201910785739 A CN201910785739 A CN 201910785739A CN 110451587 A CN110451587 A CN 110451587A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 239000002243 precursor Substances 0.000 title claims abstract description 34
- 230000032683 aging Effects 0.000 claims abstract description 48
- 238000006243 chemical reaction Methods 0.000 claims abstract description 48
- 239000011833 salt mixture Substances 0.000 claims abstract description 48
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000003860 storage Methods 0.000 claims abstract description 33
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 24
- 239000000654 additive Substances 0.000 claims abstract description 20
- 239000003513 alkali Substances 0.000 claims abstract description 20
- 238000005406 washing Methods 0.000 claims abstract description 20
- 230000000996 additive effect Effects 0.000 claims abstract description 19
- 239000012452 mother liquor Substances 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 12
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 239000000908 ammonium hydroxide Substances 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 21
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000013078 crystal Substances 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000005453 pelletization Methods 0.000 claims description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 12
- 238000009826 distribution Methods 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- SEVNKUSLDMZOTL-UHFFFAOYSA-H cobalt(2+);manganese(2+);nickel(2+);hexahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mn+2].[Co+2].[Ni+2] SEVNKUSLDMZOTL-UHFFFAOYSA-H 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 229910003678 NixCoyMnz(OH)2 Inorganic materials 0.000 description 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical class OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- HFCVPDYCRZVZDF-UHFFFAOYSA-N [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O Chemical compound [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O HFCVPDYCRZVZDF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 229940099596 manganese sulfate Drugs 0.000 description 1
- 235000007079 manganese sulphate Nutrition 0.000 description 1
- 239000011702 manganese sulphate Substances 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/006—Compounds containing, besides nickel, two or more other elements, with the exception of oxygen or hydrogen
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a kind of ternary precursor preparation systems, including feed proportioning system, synthesis control system, ageing system, washing and filter pressing system and drying system；Wherein, the feed proportioning system includes that salt-mixture prepares kettle, additive solution preparing tank；The synthesis control system includes reaction kettle, alkali storage tank and tank used for storing ammonia, and the reaction kettle is prepared kettle with salt-mixture and is connected to, and the alkali storage tank and tank used for storing ammonia are connected to reaction kettle；The ageing system includes aging reactor, and the aging reactor is connected to reaction kettle and additive solution preparing tank respectively, and agitating device is equipped in the aging reactor, and the aging reactor is additionally provided with collet；The washing and filter pressing system includes filter press and mother liquor non-conservation tank, and the aging reactor is connected to sealed filter press and mother liquor non-conservation tank respectively；The drying system includes the heated-air circulation oven that the product of washing filtering is dried.The granular precursor of closely knit particle, good sphericity, narrow particle size distribution can be made in the system.
Description
Technical field
The present invention relates to device for producing hydrogen technical field, in particular to a kind of ternary precursor preparation system.
Background technique
The critical material of lithium ion battery is positive electrode, accounts for about the 30% of lithium ion battery cost, answers currently on the market
Mainly there are cobalt acid lithium, ternary material, LiMn2O4, LiFePO4.Wherein, ternary material, i.e. nickel-cobalt lithium manganate material are one
Kind novel lithium battery positive electrode；For other positive electrodes, have specific discharge capacity high, it is at low cost, thermal stability is good,
The big advantage of energy density, the fields such as the digital electronic goods that are widely used, electric tool, electric bicycle.The system of ternary material
It is standby mainly mixed using ternary precursor with lithium source after high temperature sintering preparation.Nickel cobalt manganese hydroxide is the ternary being widely used
Persursor material, chemical general formula is NixCoyMnz (OH) 2, specifically using nickel salt, cobalt salt, manganese salt as raw material, and according to actual needs
Adjust specific usage ratio (x:y:z) synthesis of nickel cobalt manganese.
Currently, the nickel cobalt manganese hydroxide ternary precursor generallys use the preparation of crystalline co-precipitate method, however, due to system
It being easily oxidized after the hydroxide nickel cobalt Manganese exposrue to air generated during standby, entire reaction kettle needs to keep sealing state,
Consider that in existing reaction process, nickel cobalt manganese salt solution and naoh concentration all cannot be too in reaction kettle for production safety
Height, so the crystalline particle granularity for often occurring preparing is meticulous or excessive, partially crystallizable developmental immaturity and particle surface knot
The problems such as structure is loose, and then lead to the serious waste of production material.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the present invention provides a kind of ternary precursor preparation system, which can
The granular precursor of closely knit particle, good sphericity, narrow particle size distribution is made.
The present invention solves technical solution used by the problems of the prior art are as follows: a kind of ternary precursor preparation system,
Including feed proportioning system, synthesis control system, ageing system, washing and filter pressing system and drying system；Wherein,
The feed proportioning system includes the mixed salt-mixture such as vitriol and pure water being prepared kettle, and prepare precipitating reagent
The additive solution preparing tank of equal additives；
The synthesis control system includes the reaction kettle for reacting salt-mixture, alkali and ammonium hydroxide, alkali storage tank and ammonium hydroxide storage
Tank, the reaction kettle are prepared kettle with salt-mixture and are connected to, and the alkali storage tank and tank used for storing ammonia are connected to reaction kettle；
The ageing system includes the aging reactor being aged to solution after reaction, the aging reactor respectively with reaction kettle and
The connection of additive solution preparing tank, the aging reactor is interior to be equipped with agitating device, and the aging reactor is additionally provided with maintenance and adjusts aging reactor
The collet of interior temperature；
The washing and filter pressing system includes that sealed filter press and the mother liquor turnover of washing filtering are carried out to product after ageing
Tank, generates ternary precursor and mother liquor in the aging reactor after ageing, the aging reactor respectively with sealed filter press and mother liquor
Non-conservation tank connection；The ternary precursor falls into and carries out washing filtering in filter press, and the mother liquor flows into mother liquor non-conservation tank；
The drying system includes the heated-air circulation oven that the product of washing filtering is dried, and the hot air circulation is dried
Case is connected to filter press, and heated-air circulation oven is dried the ternary precursor after filter press filtration washing, is discharged.
As a preferred solution of the present invention, the feed proportioning system further includes having crystal storage tank, pure water storage tank；The crystal storage
Tank and pure water storage tank are prepared kettle with salt-mixture and are connected to, and the crystal storage tank and salt-mixture are prepared and be additionally provided with meausring apparatus between kettle.
As a preferred solution of the present invention, the synthesis system further includes salt-mixture compensator, liquid alkaline compensator, ammonia level
Weigh tank；Salt-mixture compensator one end is prepared kettle with salt-mixture and is connect, and the other end is connect with reaction kettle；The liquid alkaline compensator
One end is connect with alkali storage tank, and the other end is connect with reaction kettle；Ammonium hydroxide compensator one end is connect with tank used for storing ammonia, the other end with
Reaction kettle connection.
As a preferred solution of the present invention, additive metering is additionally provided between the additive solution preparing tank and aging reactor
Pump；Salt-mixture metering pump is equipped between salt-mixture compensator and reaction kettle；Liquid is equipped between the liquid alkaline compensator and reaction kettle
Alkali metering pump；Ammonium hydroxide metering pump is equipped between the ammonium hydroxide compensator and reaction kettle.
As a preferred solution of the present invention, the preparation system is additionally provided with except magnetic system, described except magnetic system includes pipeline
Iron remover and electric magnetic iron remover；The deironing device of pipeline is set in each connecting pipe of the preparation system；The electric magnetic iron remover is set
At the outlet of heated-air circulation oven, ternary precursor is carried out except magnetic.
As a preferred solution of the present invention, the side of the preparation system is additionally provided with ammonia absorption device.
As a preferred solution of the present invention, the side of the preparation system is additionally provided with dust pelletizing system.
Compared with prior art, the present invention has following technical effect that
A kind of ternary precursor preparation system of the present invention, the system pass through setting setting salt-mixture compensator, liquid alkaline balance
Tank, ammonium hydroxide compensator can precisely detect and control the temperature and pH value of raw material in each tank body, and then control the temperature of reaction system
Degree and pH value, while agitating device is equipped in aging reactor, the mixing speed of agitating device is controlled, it is closely knit, spherical that particle can be made
It spends, the ternary precursor particle of narrow particle size distribution.
Detailed description of the invention
Fig. 1 is a kind of structure chart of ternary precursor preparation system of the present invention.
Figure label: 1- crystal storage tank；2- pure water storage tank；3- salt-mixture prepares kettle；4- meausring apparatus；5- alkali storage tank；6-
Tank used for storing ammonia；7- salt-mixture compensator；8- liquid alkaline compensator；9- ammonium hydroxide compensator；10- reaction kettle；11- salt-mixture metering pump；
12- liquid alkaline metering pump；13- ammonium hydroxide metering pump；14- additive solution preparing tank；15- additive metering pump；16- aging reactor；17-
Agitating device；18- collet；19- filter press；20- mother liquor non-conservation tank；21- heated-air circulation oven.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below
Embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.
A kind of ternary precursor preparation system, including feed proportioning system, synthesis control system, ageing system, washing and filter pressing system
System and drying system；Wherein,
The feed proportioning system includes that the mixed salt-mixture such as vitriol and pure water is prepared kettle 3, prepares precipitating reagent etc.
The additive solution preparing tank 14 of additive；
The vitriol includes nickel sulfate, cobaltous sulfate, manganese sulfate crystal, and the vitriol is stored in crystal storage
In tank 1, pure water is stored in pure water storage tank 2, and the crystal storage tank 1 and pure water storage tank 2 are prepared kettle 3 with salt-mixture and be connected to, sulfuric acid
Salt crystalline substance and pure water prepare kettle 3 in salt-mixture and are configured to salt-mixture.
Further, the crystal storage tank 1 and salt-mixture are prepared and are additionally provided with meausring apparatus 4 between kettle 3, and sulfate crystalline substance is being fallen
Enter salt-mixture prepare kettle 3 before through meausring apparatus 4 carry out precise.
The feed proportioning system further includes having alkali storage tank 5 and tank used for storing ammonia 6；The alkali storage tank 5 and tank used for storing ammonia 6 and reaction kettle
10 connections.
The synthesis control system includes the reaction kettle 10 for reacting salt-mixture, alkali and ammonium hydroxide, the reaction kettle 10
Kettle 3 is prepared with salt-mixture respectively to be connected to；The salt-mixture prepares salt-mixture, the alkali in alkali storage tank 5 and the tank used for storing ammonia 6 in kettle 3
Interior ammonia spirit, which enters in reaction kettle 10, to be reacted；
The further synthesis system further includes salt-mixture compensator 7, liquid alkaline compensator 8, ammonium hydroxide compensator 9；It is described
7 one end of salt-mixture compensator is prepared kettle 3 with salt-mixture and is connect, and the other end is connect with reaction kettle 10；Described 8 one end of liquid alkaline compensator
It is connect with alkali storage tank 5, the other end is connect with reaction kettle 10；Described 9 one end of ammonium hydroxide compensator is connect with tank used for storing ammonia 6, the other end
It is connect with reaction kettle 10；
The salt-mixture that salt-mixture prepares in kettle 3 enters in salt-mixture compensator 7 and carries out temperature and pH value to salt-mixture
Detection is adjusted；Alkali in alkali storage tank 5 enters the detection for carrying out temperature and pH value to liquid alkaline in liquid alkaline compensator 8 and adjusts；Ammonium hydroxide
Ammonia spirit in storage tank 6 enters the detection for carrying out temperature and pH value to ammonia spirit in ammonium hydroxide compensator 9 and adjusts；After adjusting
Salt-mixture, liquid alkaline and ammonia spirit enter reaction in reaction kettle 10；
Further, salt-mixture metering pump 11 is equipped between salt-mixture compensator 7 and reaction kettle 10；The liquid alkaline compensator
Liquid alkaline metering pump 12 is equipped between 8 and reaction kettle 10；Ammonium hydroxide metering pump is equipped between the ammonium hydroxide compensator 9 and reaction kettle 10
13, it is controlled by setting salt-mixture metering pump 11, liquid alkaline metering pump 12 and ammonium hydroxide metering pump 13, control salt-mixture, liquid alkaline and ammonia
The amount for the reaction kettle 10 that water enters.
The ageing system includes the aging reactor 16 being aged to solution after reaction, the aging reactor 16 respectively with react
Kettle 10 is connected to additive solution preparing tank 14, is equipped with agitating device 17 in the aging reactor 16, the aging reactor 16 is additionally provided with
Maintain the collet 18 of temperature in adjusting aging reactor 16；Reaction kettle 10 react after reactant and additive solution preparing tank 14 add
Add agent to enter and carries out precipitation reaction in aging reactor 16；
Further, it is additionally provided with additive metering pump 15 between the additive solution preparing tank 14 and aging reactor 16, led to
It crosses additive metering pump 15 and controls the quantitative value that additive enters aging reactor 16.
The washing and filter pressing system includes that sealed filter press 19 and the mother liquor week of washing filtering are carried out to product after ageing
Turn tank 20, generate ternary precursor and mother liquor in the aging reactor 16 after ageing, the aging reactor 16 respectively with sealed filters pressing
Machine 19 is connected to mother liquor non-conservation tank 20；The ternary precursor falls into and carries out washing filtering in filter press 19, and the mother liquor flows into
In mother liquor non-conservation tank 20.
The drying system includes the heated-air circulation oven 21 that the product of washing filtering is dried, the hot air circulation
Baking oven 21 is connected to filter press 19, heated-air circulation oven 21 dries the ternary precursor after 19 filtration washing of filter press,
Discharge.
The preparation system is additionally provided with except magnetic system, described except magnetic system includes deironing device of pipeline and electric magnetic iron remover；Institute
It states each raw material that deironing device of pipeline (is not marked) in figure in each connecting pipe of the preparation system and reactant disappears
Magnetic treatment；The electric magnetic iron remover is set at the outlet of heated-air circulation oven 21 and (does not mark in figure), to ternary forerunner
Body is carried out except magnetic.
The side of the preparation system is additionally provided with ammonia absorption device (not marking in figure), and ammonia absorption device is to whole
A preparation system carries out possible ammonia leakage and is handled.
The side of the preparation system is additionally provided with dust pelletizing system, dust pelletizing system to dust caused by entire preparation system into
Row processing, it is ensured that the Dust Capacity of workshop is up to standard.
Compared with prior art, the present invention has following technical effect that
A kind of ternary precursor preparation system of the present invention, the system pass through setting setting salt-mixture compensator 7, liquid alkaline balance
Tank 8, ammonium hydroxide compensator 9 can precisely detect and control the temperature and pH value of raw material in each tank body, and then control reaction system
Temperature and pH value, while agitating device 17 is equipped in aging reactor 16, the mixing speed of agitating device 17 is controlled, it is close particle can be made
Reality, good sphericity, narrow particle size distribution ternary precursor particle.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (7)
1. a kind of ternary precursor preparation system, it is characterised in that: including feed proportioning system, synthesis control system, ageing system, wash
Wash press filteration system and drying system；Wherein,
The feed proportioning system includes the mixed salt-mixture such as vitriol and pure water being prepared kettle, and prepares precipitating reagent etc. to add
Add the additive solution preparing tank of agent；
The synthesis control system includes the reaction kettle for reacting salt-mixture, alkali and ammonium hydroxide, alkali storage tank and tank used for storing ammonia, institute
It states reaction kettle to be connected to salt-mixture preparation kettle, the alkali storage tank and tank used for storing ammonia are connected to reaction kettle；
The ageing system includes the aging reactor being aged to solution after reaction, the aging reactor respectively with reaction kettle and addition
The connection of agent solution preparing tank, the aging reactor is interior to be equipped with agitating device, and the aging reactor is additionally provided with maintenance and adjusts temperature in aging reactor
The collet of degree；
The washing and filter pressing system includes the sealed filter press and mother liquor non-conservation tank that washing filtering is carried out to product after ageing, institute
State and generate ternary precursor and mother liquor in aging reactor after ageing, the aging reactor respectively with sealed filter press and mother liquor non-conservation tank
Connection；The ternary precursor falls into and carries out washing filtering in filter press, and the mother liquor flows into mother liquor non-conservation tank；
The drying system includes the heated-air circulation oven that is dried of product to washing filtering, the heated-air circulation oven with
Filter press connection, heated-air circulation oven are dried the ternary precursor after filter press filtration washing, are discharged.
2. a kind of ternary precursor preparation system according to claim 1, it is characterised in that: the feed proportioning system further includes
There are crystal storage tank, pure water storage tank；The crystal storage tank and pure water storage tank are prepared kettle with salt-mixture and be connected tos, the crystal storage tank with mix
It closes and is additionally provided with meausring apparatus between salt preparation kettle.
3. a kind of ternary precursor preparation system according to claim 2, it is characterised in that: the synthesis system further includes
Salt-mixture compensator, liquid alkaline compensator, ammonium hydroxide compensator；Salt-mixture compensator one end is prepared kettle with salt-mixture and is connect, separately
One end is connect with reaction kettle；Liquid alkaline compensator one end is connect with alkali storage tank, and the other end is connect with reaction kettle；The ammonia level
Weighing apparatus tank one end is connect with tank used for storing ammonia, and the other end is connect with reaction kettle.
4. a kind of ternary precursor preparation system according to claim 3, it is characterised in that: the additive solution is prepared
Additive metering pump is additionally provided between tank and aging reactor；Salt-mixture metering pump is equipped between salt-mixture compensator and reaction kettle；Institute
It states and is equipped with liquid alkaline metering pump between liquid alkaline compensator and reaction kettle；Ammonium hydroxide is equipped between the ammonium hydroxide compensator and reaction kettle to measure
Pump.
5. a kind of ternary precursor preparation system according to claim 1, it is characterised in that: the preparation system is additionally provided with
It is described except magnetic system includes deironing device of pipeline and electric magnetic iron remover except magnetic system；The deironing device of pipeline is set to the preparation system
In each connecting pipe；The electric magnetic iron remover is set at the outlet of heated-air circulation oven, carries out ternary precursor except magnetic.
6. a kind of ternary precursor preparation system according to claim 1, it is characterised in that: the side of the preparation system
It is additionally provided with ammonia absorption device.
7. a kind of ternary precursor preparation system according to claim 1, it is characterised in that: the side of the preparation system
It is additionally provided with dust pelletizing system.
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| CN112378177A (en) * | 2020-10-20 | 2021-02-19 | 常州百利锂电智慧工厂有限公司 | Washing system, processing system and processing technology of lithium battery ternary material |
| CN113277571A (en) * | 2021-05-28 | 2021-08-20 | 广东佳纳能源科技有限公司 | Production system and production method of ternary precursor |
| CN113690011A (en) * | 2021-07-13 | 2021-11-23 | 贵州金瑞新材料有限责任公司 | Demagnetisation process for preparing battery-grade trimanganese tetroxide by manganese sheet method |
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| CN114130275A (en) * | 2021-11-26 | 2022-03-04 | 广东长信精密设备有限公司 | Cadmium chloride mixed crystal hydrate solution production system |
| CN114405917A (en) * | 2021-12-20 | 2022-04-29 | 宜宾光原锂电材料有限公司 | Method and equipment for dipping and washing ternary precursor |
| CN115432747A (en) * | 2022-09-30 | 2022-12-06 | 格林爱科(荆门)新能源材料有限公司 | Method and equipment for reducing magnetic foreign matters of ternary precursor |
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