CN203781852U - Lithium iron phosphate continuous preparing device - Google Patents
Lithium iron phosphate continuous preparing device Download PDFInfo
- Publication number
- CN203781852U CN203781852U CN201420118341.4U CN201420118341U CN203781852U CN 203781852 U CN203781852 U CN 203781852U CN 201420118341 U CN201420118341 U CN 201420118341U CN 203781852 U CN203781852 U CN 203781852U
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- Prior art keywords
- reactor
- aging
- lithium phosphate
- iron lithium
- aging reactor
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- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 46
- 230000032683 aging Effects 0.000 claims abstract description 95
- 238000003860 storage Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 20
- 238000003756 stirring Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 22
- 239000000463 material Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 15
- 238000001027 hydrothermal synthesis Methods 0.000 description 7
- 238000010924 continuous production Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 238000003836 solid-state method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010523 cascade reaction Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940116007 ferrous phosphate Drugs 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 229910000155 iron(II) phosphate Inorganic materials 0.000 description 1
- SDEKDNPYZOERBP-UHFFFAOYSA-H iron(ii) phosphate Chemical compound [Fe+2].[Fe+2].[Fe+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O SDEKDNPYZOERBP-UHFFFAOYSA-H 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/45—Phosphates containing plural metal, or metal and ammonium
-
- 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
- B01J19/006—Baffles
-
- 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
- B01J19/245—Stationary reactors without moving elements inside placed in series
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00054—Controlling or regulating the heat exchange system
- B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
- B01J2219/00058—Temperature measurement
- B01J2219/00063—Temperature measurement of the reactants
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00054—Controlling or regulating the heat exchange system
- B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
- B01J2219/00065—Pressure measurement
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00054—Controlling or regulating the heat exchange system
- B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
- B01J2219/00067—Liquid level measurement
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
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- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00162—Controlling or regulating processes controlling the pressure
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00164—Controlling or regulating processes controlling the flow
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- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00182—Controlling or regulating processes controlling the level of reactants in the reactor vessel
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00189—Controlling or regulating processes controlling the stirring velocity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model relates to a lithium iron phosphate continuous preparing device comprising a raw material tank, a reaction kettle, a first aging kettle, a second aging kettle, a gas input device, heating devices, stirring devices and a product storage tank, wherein the reaction kettle is connected with the raw material tank, the first aging kettle is connected with the reaction kettle, the second gaining kettle is connected with the first aging kettle, the gas input device is respectively connected with the reaction kettle, the first aging kettle, the second aging kettle and the product storage tank, the heating devices are respectively arranged outside the reaction kettle, the first aging kettle and the second aging kettle, and the stirring devices are respectively arranged in the reaction kettle, the first aging kettle and the second aging kettle.
Description
Technical field
The utility model relates to a kind of iron lithium phosphate continuous preparation device.
Background technology
Energy problem is a significant problem of human society and scientific technological advance always.Lithium ion battery, as the higher green secondary cell of energy density, has been widely used in the consumption electronic products such as notebook computer, mobile phone, Kamera.
Iron lithium phosphate has a better security as a kind of, and cheap and environment amenable anode active material of lithium ion battery is subject to people always and greatly pays close attention to.The in vitro synthetic method of iron lithium phosphate mainly contains high temperature solid-state method, spray method, hydrothermal synthesis method, coprecipitation method, emulsion desiccating method and microwave process for synthesizing etc. at present.Mainly synthetic on a large scale by high temperature solid-state method at industrial iron lithium phosphate.Yet high temperature solid-state method need to carry out sintering under comparatively high temps, product granularity is larger, poor-performing.Hydrothermal Synthesis and solvent thermal are synthetic is to synthesize at a lower temperature the method for the iron lithium phosphate of reduced size crystal grain.Yet these two kinds of synthetic methods need to be positioned over raw material pressurized, heated in the autoclave of sealing, each synthetic output is subject to the restriction of autoclave volume, is difficult to be applied to large-scale industrialization and produces.And synthetic iron lithium phosphate is easily subject to the impact of reaction conditions difference in batches, the iron lithium phosphate product performance that different batches is produced are inconsistent.
Summary of the invention
In view of this, necessaryly provide a kind of iron lithium phosphate continuous preparation device, by this device, can realize the continuous production of iron lithium phosphate hydrothermal synthesis method, meet industrialization product consistence needs.
A kind of iron lithium phosphate continuous preparation device, comprise head tank, reactor, the first aging reactor, the second aging reactor, gas input device, heating unit, agitator and product storage tank, this reactor is connected with head tank, this first aging reactor is connected with this reactor, this second aging reactor is connected with the first aging reactor, this gas input device respectively with this reactor, the first aging reactor, the second aging reactor and this product storage tank are connected, this heating unit is separately positioned on this reactor, the first aging reactor and the second aging reactor are outside, this agitator is separately positioned on this reactor, the first aging reactor and the second aging reactor are inner.
The utility model makes hydrothermal synthesis method can divide three phases to carry out by this iron lithium phosphate continuous preparation device, difference corresponding reactor, the first aging reactor and the second aging reactor, by gas input device, provide required pressure in three stills, make these three stills of the continuous process of raw material, can realize in the operational process of material and constantly react and generate iron lithium phosphate, and can obtain good crystal habit, and can realize product heavy industrialization and produce continuously, greatly improve the consistence of iron lithium phosphate product.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment iron lithium phosphate continuous preparation device.
Main element nomenclature
| Iron lithium phosphate continuous preparation device | 1 |
| Head tank | 10 |
| Volume pump | 12 |
| Raw material preheating device | 14 |
| Reactor | 20 |
| Back pressure valve | 22 |
| Baffle plate | 24 |
| The first aging reactor | 30 |
| The second aging reactor | 40 |
| Heating jacket | 50 |
| Agitator | 52 |
| Frequency transformer | 54 |
| Baiting valve | 56 |
| Thermopair | 58 |
| Liquidometer | 59 |
| Gas input device | 60 |
| Pressure gas tank | 62 |
| Strainer | 64 |
| Reducing valve | 66 |
| Needle valve | 68 |
| Check valve | 69 |
| Ball valve | 70 |
| Pressure-detecting device | 80 |
| Product storage tank | 90 |
Following embodiment further illustrates the utility model in connection with above-mentioned accompanying drawing.
Embodiment
The iron lithium phosphate continuous preparation device below in conjunction with the accompanying drawings and the specific embodiments the utility model being provided is described in further detail.
Refer to Fig. 1, the utility model provides a kind of iron lithium phosphate continuous preparation device 1, for passing through hydrothermal synthesis method or solvent thermal synthesis method continuous production iron lithium phosphate, this iron lithium phosphate continuous preparation device 1 comprises head tank 10, reactor 20, the first aging reactor 30, the second aging reactor 40, product storage tank 90 and gas input device 60.
This head tank 10 is for storing the material solution of Hydrothermal Synthesis or solvent thermal synthesizing iron lithium phosphate, the present embodiment comprises two head tanks 10, one of them head tank 10 stores ferrous phosphate solution, and another head tank 10 stores phosphoric acid and the reacted solution of lithium hydroxide.This head tank 10 is connected with the opening for feed of reactor 20 by airtight pipeline, on the airtight pipeline between head tank 10 and reactor 20, volume pump 12 can be further set, for material solution being transported to reactor 20.This iron lithium phosphate continuous preparation device 1 can further comprise a raw material preheating device 14, is arranged on outside the pipeline liquid injecting device that connects this head tank 10 and this reactor 20, and the material solution that flows through this pipeline is preheated, and contributes to the carrying out of reaction in reactor 20.
This material solution passes through this reactor 20, the first aging reactor 30 and the second aging reactor 40 successively, experiences respectively two reaction process, i.e. initial reaction process in reactor 20, and the ageing reaction process in the first aging reactor 30 and the second precipitation still 40.In the whole hydro-thermal or solvent thermal reaction process of iron lithium phosphate, react and can tentatively generate iron lithium phosphate in 4 hours, but be the complete timing node of iron lithium phosphate crystal formation above in 10 hours, electro-chemical properties is optimum.For making, material solution is fully mixed is incorporated in that under predetermined temperature and pressure, to complete mean residence time be the preliminary crystallization reaction of 4 hours to this reactor 20, needs to carry out strong mixing in this reactor 20.This first aging reactor 30 and the second aging reactor 40 more steadily fixed environment under complete the average stop reaction times of 5 hour ~ 10 hour at reaction conditions for the iron lithium phosphate crystalline substance that makes preliminary crystallization together with mother liquor, make iron lithium phosphate crystal formation complete, reach the optimization of chemical property.In addition, because material solution is back to back in complete mixing flow reactor 20, the reaction times of all materials is normal distribution, and this first aging reactor 30 and the second aging reactor 40 can make the normal distribution in this reaction times more concentrate on mean residence time.
This first aging reactor 30 is connected by airtight pipeline with this reactor 20, and this second aging reactor 40 is connected by airtight pipeline with the first aging reactor 30.This second aging reactor 40 is connected by pipeline liquid injecting device with this product storage tank 90.Particularly, the discharge port on these reactor 20 sidewalls is connected with the opening for feed of this first aging reactor 30.Discharge port on these the first aging reactor 30 sidewalls is connected with the opening for feed of the second aging reactor 40, and the discharge port on these the second aging reactor 40 sidewalls is connected with product storage tank 90.
This reactor 20, the first aging reactor 30 and the second aging reactor 40 all need to be worked under constant temp and pressure, and the pressure of these three stills and temperature can be identical.Preferably, the working temperature of these three still inside all can be at 25 ~ 250 ℃, and operating pressure all can be at 0 ~ 1.6MPa, and the volume of each still can be 10L to 20L.
This preparation facilities 1 also comprises three heating units, as heating jacket 50, is separately positioned on the outside of this reactor 20, the first aging reactor 30 and the second aging reactor 40, for reactor 20, the first aging reactor 30 and the second aging reactor 40 are heated respectively and be incubated.In addition, this preparation facilities 1 can further comprise three temperature measurers, as thermopair 58, respectively the temperature of this reactor 20, the first aging reactor 30 and the second aging reactor 40 inside is measured.
This preparation facilities 1 also comprises three agitators 52, be separately positioned on the inside of this reactor 20, the first aging reactor 30 and the second aging reactor 40, it can be specifically the agitator arm with stirring arm, this agitator 52 can be connected with the electric control gear being arranged on outside still, this electric control gear can have frequency transformer 54, for adjusting the rotating speed of agitator 52, this rotating speed can be 0 ~ 200 rev/min.
This preparation facilities 1 can comprise three liquidometers 59, is separately positioned on the inside of this reactor 20, the first aging reactor 30 and the second aging reactor 40, for measuring the height of materials inside.
This reactor 20 can further comprise one or more baffle plates 24, is arranged on the inwall of reactor 20, for increasing stirring resistance, makes the full and uniform mixing of material solution.
This reactor 20, the first aging reactor 30 and the second aging reactor 40 can have respectively baiting valve 56 at the bottom of still, for discharge residual material in still when shutting down.
This gas input device 60 is connected by airtight pipeline with this reactor 20, the first aging reactor 30, the second aging reactor 40 and this product storage tank 90 respectively, for inputting high voltage protective gas, makes to maintain in tandem reaction sequence predetermined reaction pressure.On the pipeline of this connection gas input device 60 and reactor 20, the first aging reactor 30, the second aging reactor 40 and product storage tank 90, can be respectively arranged with pressure regulator valve door, as ball valve 70, thereby the pressure of three stills and product storage tank 90 be regulated.This reactor 20, the first aging reactor 30 and the second aging reactor 40 can have respectively a gas barrier, as back pressure valve 22, for controlling respectively each still internal pressure at predetermined interval.This shielding gas can be hydrogen or nitrogen.This gas input device 60 can comprise pressure gas tank 62, strainer 64 and the reducing valve 66 connecting by pipeline liquid injecting device.High pressure gas in this pressure gas tank 62 are decompressed to suitable reaction pressure through reducing valve 66 after filtering by strainer 64, by pipeline liquid injecting device, are delivered to respectively this reactor 20 and this product storage tank 90.This gas input device 60 can further comprise a needle valve 68, is connected with this reducing valve 66.Further, a check valve 69 can be set in the exit of this gas input device 60, to protect this gas input device 60.The volume of this product storage tank 90 can be 10L ~ 20L, and operating temperature range can be 0 ~ 250 ℃, and working pressure range can be 0 ~ 1.6MPa.
The different positions of this iron lithium phosphate continuous preparation device 1 can be respectively arranged with pressure-detecting device 80, each is installed to inner pressure, monitor, for example, in inside and the outlet of this gas input device 60, reactor 20, the first aging reactor 30 and the second aging reactor 40 inside are provided with pressure-detecting device 80.The different positions of this iron lithium phosphate continuous preparation device 1 can be respectively arranged with opening-closing valve, as ball valve 70, so that preparation facilities 1 is carried out to segmentation control and maintenance.
In the continuous production process of this iron lithium phosphate, gas input device 60 passes into gas in reactor 20, the first aging reactor 30, the second aging reactor 40 and this product storage tank 90, make the pressure of three stills be increased to predetermined pressure range, this pressure range is adjusted by back pressure valve 22 and reducing valve 66, and 50 pairs of three stills of heating jacket are heated to predetermined temperature range.Material solution is extracted out by volume pump 12 respectively from head tank 10 separately, constantly be injected in reactor 20, by stirring, mixed being incorporated in carried out preliminary pre-reaction under predetermined pressure and temperature condition, according to hydro-thermal or solvent thermal reaction principle, iron lithium phosphate crystallization under this temperature and pressure condition generates, and constantly grows up and sufficient reacting in second stage reaction and third stage reaction.The discharge port of this reactor 20, the first aging reactor 30 and the second aging reactor 40 is all positioned on sidewall, and the centrifugal force producing under the stirring of agitator 52 at the material of reactor 20, constantly overflows from the discharge port of sidewall, thereby enter this first aging reactor 30.Similarly, under the stirring of the agitator 52 of the first aging reactor 30, from the discharge port of sidewall, constantly enter into the second aging reactor 40, and from the discharge port of sidewall, constantly enter into product storage tank 90 under the stirring of the agitator 52 of the second aging reactor 40.This process is a successive processes, constantly has material solution from head tank 10 input reactors 20, and constantly has product from the second aging reactor 40 outputs, thereby reaches running balance.
The utility model carries out hydrothermal synthesis method in three steps, difference corresponding reactor, the first aging reactor and the second aging reactor, by gas input device, provide required pressure in three stills, make these three stills of the continuous process of raw material, can realize in the operational process of material and constantly react and generate iron lithium phosphate, and can obtain good crystal habit, and can realize product heavy industrialization and produce continuously, greatly improve the consistence of iron lithium phosphate product.
In addition, those skilled in the art also can do other and change in the utility model spirit, and certainly, the variation that these are done according to the utility model spirit, within all should being included in the utility model scope required for protection.
Claims (10)
1. an iron lithium phosphate continuous preparation device, it is characterized in that, comprise head tank, reactor, the first aging reactor, the second aging reactor, gas input device, heating unit, agitator and product storage tank, this reactor is connected with head tank, the opening for feed of this first aging reactor is connected with the discharge port on this reactor sidewall, the opening for feed of this second aging reactor is connected with the discharge port on the first aging reactor sidewall, this product storage tank is connected with the discharge port on this second precipitation still sidewall, this gas input device respectively with this reactor, the first aging reactor, the second aging reactor and this product storage tank are connected, this heating unit is separately positioned on this reactor, the first aging reactor and the second aging reactor are outside, this agitator is separately positioned on this reactor, the first aging reactor and the second aging reactor are inner.
2. iron lithium phosphate continuous preparation device as claimed in claim 1, is characterized in that, this reactor, the first aging reactor and the second aging reactor all have back pressure valve.
3. iron lithium phosphate continuous preparation device as claimed in claim 1, it is characterized in that, this reactor is connected by pipeline liquid injecting device with head tank, and this iron lithium phosphate continuous preparation device further comprises the volume pump on the airtight pipeline being arranged between head tank and reactor.
4. iron lithium phosphate continuous preparation device as claimed in claim 3, is characterized in that, further comprises that raw material preheating device is arranged on outside the pipeline liquid injecting device that connects this head tank and this reactor.
5. iron lithium phosphate continuous preparation device as claimed in claim 1, is characterized in that, this gas input device comprises pressure gas tank, strainer and the reducing valve connecting by pipeline liquid injecting device.
6. iron lithium phosphate continuous preparation device as claimed in claim 5, is characterized in that, further comprises the check valve that is arranged on this gas input device exit.
7. iron lithium phosphate continuous preparation device as claimed in claim 1, is characterized in that, further comprises pressure regulator valve door, is separately positioned on the pipeline that this gas input device is connected with reactor, the first aging reactor, the second aging reactor and product storage tank.
8. iron lithium phosphate continuous preparation device as claimed in claim 1, is characterized in that, further comprises liquidometer, is separately positioned on the inside of this reactor, the first aging reactor and the second aging reactor.
9. iron lithium phosphate continuous preparation device as claimed in claim 1, is characterized in that, this reactor further comprises one or more baffle plates, is arranged on the sidewall of reactor.
10. iron lithium phosphate continuous preparation device as claimed in claim 1, is characterized in that, this reactor, the first aging reactor and the second aging reactor have respectively baiting valve at the bottom of still.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118341.4U CN203781852U (en) | 2014-03-17 | 2014-03-17 | Lithium iron phosphate continuous preparing device |
| PCT/CN2015/070979 WO2015139526A1 (en) | 2014-03-17 | 2015-01-19 | Device for continuously preparing lithium iron phosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118341.4U CN203781852U (en) | 2014-03-17 | 2014-03-17 | Lithium iron phosphate continuous preparing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203781852U true CN203781852U (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420118341.4U Expired - Lifetime CN203781852U (en) | 2014-03-17 | 2014-03-17 | Lithium iron phosphate continuous preparing device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203781852U (en) |
| WO (1) | WO2015139526A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577122A (en) * | 2015-01-27 | 2015-04-29 | 江苏华东锂电技术研究院有限公司 | Lithium iron phosphate solvothermal preparation device |
| WO2015139526A1 (en) * | 2014-03-17 | 2015-09-24 | 江苏华东锂电技术研究院有限公司 | Device for continuously preparing lithium iron phosphate |
| WO2016119518A1 (en) * | 2015-01-28 | 2016-08-04 | 江苏华东锂电技术研究院有限公司 | Continuous lithium iron phosphate preparation device and preparation method |
| WO2016197425A1 (en) * | 2015-06-09 | 2016-12-15 | 张家港合志纳米科技有限公司 | Device system and preparation process for preparing submicron material by continuous hydrothermal method |
| CN106379877A (en) * | 2015-12-27 | 2017-02-08 | 天津赫维科技有限公司 | Continuous preparation device of iron phosphate |
| CN107337189A (en) * | 2017-08-23 | 2017-11-10 | 江西艾德纳米科技有限公司 | The method of ferric phosphate continuous production system and continuous production ferric phosphate |
| CN108117055A (en) * | 2017-12-30 | 2018-06-05 | 彩客化学（东光）有限公司 | The preparation method and process units of a kind of battery-grade iron phosphate |
| CN114797727A (en) * | 2022-04-29 | 2022-07-29 | 深圳沃伦特新能源科技有限公司 | Production equipment for synthesizing lithium iron phosphate by hydrothermal method |
| WO2024011626A1 (en) * | 2022-07-15 | 2024-01-18 | 宁德时代新能源科技股份有限公司 | Continuous reaction system, ferromanganese phosphate precursor and preparation method therefor, lithium ferromanganese phosphate, and secondary battery |
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| CN103464082B (en) * | 2013-01-31 | 2015-09-09 | 宜昌市三峡天润纳米材料工程技术研究中心有限公司 | A kind of nano-powder material preparation system |
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| CN203781852U (en) * | 2014-03-17 | 2014-08-20 | 江苏华东锂电技术研究院有限公司 | Lithium iron phosphate continuous preparing device |
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2014
- 2014-03-17 CN CN201420118341.4U patent/CN203781852U/en not_active Expired - Lifetime
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2015
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| WO2023206834A1 (en) * | 2022-04-29 | 2023-11-02 | 深圳沃伦特新能源科技有限公司 | Production apparatus for synthesizing lithium iron phosphate by means of hydrothermal method |
| CN114797727B (en) * | 2022-04-29 | 2024-02-02 | 深圳市沃伦特新能源有限公司 | Production equipment for synthesizing lithium iron phosphate by hydrothermal method |
| WO2024011626A1 (en) * | 2022-07-15 | 2024-01-18 | 宁德时代新能源科技股份有限公司 | Continuous reaction system, ferromanganese phosphate precursor and preparation method therefor, lithium ferromanganese phosphate, and secondary battery |
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