CN203728581U - Lithium iron phosphate preparation device - Google Patents
Lithium iron phosphate preparation device Download PDFInfo
- Publication number
- CN203728581U CN203728581U CN201320852541.8U CN201320852541U CN203728581U CN 203728581 U CN203728581 U CN 203728581U CN 201320852541 U CN201320852541 U CN 201320852541U CN 203728581 U CN203728581 U CN 203728581U
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- China
- Prior art keywords
- boiler tube
- powder
- transmission mechanism
- lithium phosphate
- flour extraction
- Prior art date
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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 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 132
- 238000005245 sintering Methods 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000000605 extraction Methods 0.000 claims description 44
- 235000013312 flour Nutrition 0.000 claims description 44
- 230000005540 biological transmission Effects 0.000 claims description 43
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 11
- 238000013022 venting Methods 0.000 claims description 5
- 239000002345 surface coating layer Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 235000011089 carbon dioxide Nutrition 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel 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
- 238000005336 cracking Methods 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003836 solid-state method Methods 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010504 bond cleavage reaction Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- 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 utility model relates to a lithium iron phosphate preparation device comprising a powder feeding system, a powder dehydrating system, a second temperature sintering system, a third temperature sintering system, a powder cooling system, a powder discharge system, a circuit control system and a gas control system.
Description
Technical field
The utility model relates to a kind of iron lithium phosphate preparation facilities, relates in particular to a kind of iron lithium phosphate preparation facilities.
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 the equipment of industrial synthesizing iron lithium phosphate is still discontinuous equipment stage by stage at present, only can realize intermittent production, these iron lithium phosphate product performance that caused different batches to be produced are inconsistent.
Summary of the invention
In view of this, necessaryly provide a kind of iron lithium phosphate preparation facilities, by this device, can realize the extensive preparation of iron lithium phosphate, meet industrialization product consistence needs.
A kind of iron lithium phosphate preparation facilities, comprise powder input system, powder dewatering system, the second temperature sintering system, the 3rd temperature sintering system, powder cooling system, powder output system, circuit control system and gas control system, this powder dewatering system comprises the first transmission mechanism, the first powder feeding device, the first boiler tube and the first temperature-adjusting heating device, this first boiler tube comprises the first inlet mouth of the first powder entering end, the first flour extraction end and close this first powder entering end, and this first powder entering end is connected with this powder input system; This second temperature sintering system comprises the second transmission mechanism, the second powder feeding device, the second boiler tube and the second temperature agglomerating plant, this second boiler tube comprises the venting port of the second powder entering end, the second flour extraction end and close the second flour extraction end, and the second powder entering end of this second boiler tube is directly communicated with the first flour extraction end of this first boiler tube; The 3rd temperature sintering system comprises the 3rd transmission mechanism, the 3rd powder feeding device, the 3rd boiler tube and the 3rd temperature agglomerating plant, the 3rd boiler tube comprises the 3rd powder entering end, the 3rd flour extraction end and the second inlet mouth, and the 3rd powder entering end of the 3rd boiler tube is communicated with the second flour extraction end of the second boiler tube; This powder cooling system comprises the 4th transmission mechanism, the 4th powder feeding device, the 4th boiler tube and refrigerating unit, the 4th boiler tube comprises the 4th powder entering end, the 4th flour extraction end and the 3rd inlet mouth, the 4th powder entering end of the 4th boiler tube is communicated with the 3rd flour extraction end of the 3rd boiler tube, and the 4th flour extraction end is connected with this powder output system.
The utility model is by the cooperation of powder dewatering system, the second temperature sintering system, the 3rd temperature sintering system and powder cooling system, having realized product heavy industrialization produces continuously, greatly improved the consistence of iron lithium phosphate product, and there is the design of " two ends air inlet; give vent to anger in centre ", in powder dewatering system, the 3rd temperature sintering system and the air inlet of powder cooling system, at the second temperature sintering system Exhaust Gas, can avoid a large amount of obnoxious flavoures that produce in the second temperature sintering system to affect the synthetic of iron lithium phosphate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment iron lithium phosphate preparation facilities.
Main element nomenclature
| Iron lithium phosphate preparation facilities | 10 |
| Powder input system | 100 |
| Powder dewatering system | 200 |
| The first transmission mechanism | 210 |
| The first powder feeding device | 220 |
| The first boiler tube | 230 |
| The first powder entering end | 232 |
| The first flour extraction end | 234 |
| The first inlet mouth | 236 |
| The first temperature-adjusting heating device | 240 |
| The second temperature sintering system | 300 |
| The second transmission mechanism | 310 |
| The second powder feeding device | 320 |
| The second boiler tube | 330 |
| The second powder entering end | 332 |
| The second flour extraction end | 334 |
| Venting port | 336 |
| The second temperature agglomerating plant | 340 |
| The first blanking channel | 350 |
| The 3rd temperature sintering system | 400 |
| The 3rd transmission mechanism | 410 |
| The 3rd powder feeding device | 420 |
| The 3rd boiler tube | 430 |
| The 3rd powder entering end | 432 |
| The 3rd flour extraction end | 434 |
| The second inlet mouth | 436 |
| The 3rd temperature agglomerating plant | 440 |
| The second blanking channel | 450 |
| Powder cooling system | 500 |
| The 4th transmission mechanism | 510 |
| The 4th powder feeding device | 520 |
| The 4th boiler tube | 530 |
| The 4th powder entering end | 532 |
| The 4th flour extraction end | 534 |
| The 3rd inlet mouth | 536 |
| Refrigerating unit | 540 |
| Powder output system | 600 |
| Circuit control system | 700 |
| Transmission control system | 710 |
| Boiler tube heating control system | 720 |
| Gas control system | 800 |
Following embodiment further illustrates the utility model in connection with above-mentioned accompanying drawing.
Embodiment
The iron lithium phosphate preparation facilities 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 preparation facilities 10, comprises powder input system 100, powder dewatering system 200, the second temperature sintering system 300, the 3rd temperature sintering system 400, powder cooling system 500, powder output system 600, circuit control system 700 and gas control system 800.This second temperature is less than the 3rd temperature.
Material powder for the synthesis of iron lithium phosphate is inputted in these iron lithium phosphate preparation facilitiess by this powder input system 100.
This powder dewatering system 200 comprises the first transmission mechanism 210, the first powder feeding device 220, the first boiler tube 230 and the first temperature-adjusting heating device 240.This first boiler tube 230 comprises the first inlet mouth 236 of the first powder entering end 232, the first flour extraction end 234 and close this first powder entering end 232.This first powder entering end 232 is connected with this powder input system 100.
The Heating temperature of this first temperature-adjusting heating device 240 can be 60 ℃ ~ 100 ℃, can comprise that one is set in the heating tube of these the first boiler tube 230 outside surfaces, for heating this first boiler tube 230.Because this first temperature is lower, this first temperature-adjusting heating device 240 can be oil bath heating unit or water bath heating device.
This first powder feeding device 220 drives by this first transmission mechanism 210, and material powder is constantly transported to this first flour extraction end 234 from this first powder entering end 232.This material powder can comprise lithium source, phosphorus source and source of iron, also can further comprise carbon source.Owing to there being the gases such as planar water and carbonic acid gas, oxygen in this material powder, in follow-up building-up process, the gases such as water and carbonic acid gas, oxygen all can produce considerable influence to building-up reactions, need to remove in advance.This powder dewatering system 200 is for removing water and carbonic acid gas and the oxygen of this material powder surface adsorption.
This first boiler tube 230 can be an angle a with horizontal direction, 0 ° of <a≤30 °, thus make material powder comparatively be easy to march to this first flour extraction end 234 by the effect of gravity.Especially when the length of this first boiler tube 230 is longer, during as 2 to 10 meters, this first boiler tube 230 is tilted particularly important, can guarantee that material powder can evenly be transported to this first flour extraction end 234.
This gas control system 800 passes into protective gas by this first inlet mouth 236 in this first boiler tube 230, as nitrogen.
This first boiler tube 230 also can further comprise that one is arranged on the viewing window (figure is mark not) on tube wall, is convenient to user the state of the material powder of the first boiler tube 230 inside is observed.
This powder dewatering system 200 also can further comprise a pressure-detecting device (figure is mark not) and gas-detecting device (figure is mark not), be separately positioned on this first boiler tube 230, this pressure-detecting device is for detection of the gaseous tension of boiler tube inside, and this gas-detecting device is for detection of the gaseous fraction of boiler tube inside.
This second temperature sintering system 300 comprises the second transmission mechanism 310, the second powder feeding device 320, the second boiler tube 330 and the second temperature agglomerating plant 340.This second boiler tube 330 comprises the venting port 336 of the second powder entering end 332, the second flour extraction end 334 and close the second flour extraction end 334.The second powder entering end 332 of this second boiler tube 330 is directly communicated with the first flour extraction end 234 of this first boiler tube 230.
The sintering temperature of this second temperature agglomerating plant 340 can be 100 ℃ ~ 300 ℃, can comprise the resistance wire of winding outside this second boiler tube 330, the thermopair that is enclosed in the thermal insulation layer outside this resistance wire and contacts with this second boiler tube 330, for Heating temperature is surveyed and controlled.
This second powder feeding device 320 drives by this second transmission mechanism 310, and the powder through the first boiler tube 230 is constantly transported to this second flour extraction end 334 from this second powder entering end 332.Because lithium source, phosphorus source and source of iron may further contain crystal water, and low molecule carbon source need to form conductive carbon through cracking, crystal water deviate from and the cracking of carbon source will produce the gases such as a large amount of steam and carbonic acid gas, all can produce considerable influence to the building-up reactions of iron lithium phosphate, need to remove in advance.This second temperature agglomerating plant 340 is for removing the crystal water of lithium source, phosphorus source and source of iron, and makes carbon source generation scission reaction.Owing to can producing a large amount of gas in this second boiler tube 330, the second flour extraction end 334 that this venting port 336 is arranged on this second boiler tube 330 can effectively exhale pernicious gases rapidly, is beneficial to the synthetic of iron lithium phosphate.
This second boiler tube 330 can be and is horizontally disposed with, and this first boiler tube 230 can have identical caliber with the second boiler tube 330, and seamless connection, keeps confined gas.This protective gas inputs to this second boiler tube 330 from the first boiler tube 230.
This second boiler tube 330 also can further comprise that one is arranged on the viewing window (figure is mark not) on tube wall, is convenient to user the state of the powder of the second boiler tube 330 inside is observed.
This second temperature sintering system 300 also can further comprise a pressure-detecting device (figure is mark not) and gas-detecting device (figure is mark not), be separately positioned on this second boiler tube 330, this pressure-detecting device is for detection of the gaseous tension of boiler tube inside, and this gas-detecting device is for detection of the gaseous fraction of boiler tube inside.
The 3rd temperature sintering system 400 comprises the 3rd transmission mechanism 410, the 3rd powder feeding device 420, the 3rd boiler tube 430 and the 3rd temperature agglomerating plant 440.The 3rd boiler tube 430 comprises the 3rd powder entering end 432, the 3rd flour extraction end 434 and the second inlet mouth 436.The 3rd powder entering end 432 of the 3rd boiler tube 430 is communicated with the second flour extraction end 334 of the second boiler tube 330.
The sintering temperature of the 3rd temperature agglomerating plant 440 can be 300 ℃ ~ 700 ℃, can comprise the resistance wire of winding outside the 3rd boiler tube 430, the thermopair that is enclosed in the thermal insulation layer outside this resistance wire and contacts with the 3rd boiler tube 430, for Heating temperature is surveyed and controlled.
The 3rd powder feeding device 420 drives by the 3rd transmission mechanism 410, and the powder through the second boiler tube 330 is constantly transported to the 3rd flour extraction end 434 from the 3rd powder entering end 432.The 3rd temperature agglomerating plant 440 is synthetic for iron lithium phosphate, makes iron lithium phosphate start progressively nucleation growth, and is coated on the further carbonization of powder surface carbon source, forms conductive carbon layer.
The 3rd boiler tube 430 can be and is horizontally disposed with.In one embodiment, between the 3rd powder entering end 432 of the 3rd boiler tube 430 and the second flour extraction end 334 of the second boiler tube 330, can be connected by the first blanking channel 350, powder directly enters the 3rd boiler tube 430 from the second boiler tube 330 through the first blanking channel 350.In another embodiment, this second boiler tube 330 can coaxially arrange with the 3rd boiler tube 430 and in end seamless connection, thereby form, lead directly to and to keep confined gas.This second boiler tube 330 can have identical caliber with the 3rd boiler tube 430.This protective gas inputs to the 3rd boiler tube 430 from this second inlet mouth 436.This second inlet mouth 436 can be arranged near the 3rd flour extraction end 434 of the 3rd boiler tube 430.
The 3rd boiler tube 430 also can further comprise that one is arranged on the viewing window (figure is mark not) on tube wall, is convenient to user the state of the powder of the 3rd boiler tube 430 inside is observed.
The 3rd temperature sintering system 400 also can further comprise a pressure-detecting device (figure is mark not) and gas-detecting device (figure is mark not), be separately positioned on the 3rd boiler tube 430, this pressure-detecting device is for detection of the gaseous tension of boiler tube inside, and this gas-detecting device is for detection of the gaseous fraction of boiler tube inside.
This powder cooling system 500 comprises the 4th transmission mechanism 510, the 4th powder feeding device 520, the 4th boiler tube 530 and refrigerating unit 540.The 4th boiler tube 530 comprises the 4th powder entering end 532, the 4th flour extraction end 534 and the 3rd inlet mouth 536.The 4th powder entering end 532 of the 4th boiler tube 530 is communicated with the 3rd flour extraction end 434 of the 3rd boiler tube 430.The 4th flour extraction end 534 is connected with this powder output system 600.
This refrigerating unit 540 can comprise the cooling water pipe being set in outside the 4th boiler tube 530, contains the water coolant of continuous circulation in this cooling water pipe, for giving the product powder cooling of the 4th boiler tube 530.
The 4th powder feeding device 520 drives by the 4th transmission mechanism 510, and the powder through the 4th boiler tube 530 is constantly transported to the 4th flour extraction end 534 from the 4th powder entering end 532.
The 4th boiler tube 530 can be an angle b with level, 0 ° of <b≤30 °.In one embodiment, the 3rd flour extraction end 434 of the 3rd boiler tube 430 is connected by the second blanking channel 450 with the 4th powder entering end 532 of the 4th boiler tube 530, and powder directly enters the 4th boiler tube 530 from the 3rd boiler tube 430 through the second blanking channel 450.In another embodiment, the 3rd boiler tube 430 can coaxially arrange with the 4th boiler tube 530 and in end seamless connection, thereby form, lead directly to and to keep confined gas.The 3rd boiler tube 430 can have identical caliber with the 4th boiler tube 530.This protective gas inputs to the 4th boiler tube 530 from the 3rd inlet mouth 536.The 3rd inlet mouth 536 can be arranged near the 4th powder entering end 532 of the 4th boiler tube 530.The iron lithium phosphate product powder that this obtains enters this powder output system 600 by the 4th flour extraction end 534.
This circuit control system 700 can comprise transmission control system 710 and boiler tube heating control system 720.This transmission control system 710 can be connected with this first transmission mechanism 210, the second transmission mechanism 310, the 3rd transmission mechanism 410 and the 4th transmission mechanism 510, for transmission mechanism provides electric power.This boiler tube heating control system 720 can be connected with this second temperature agglomerating plant 340 and the 3rd temperature agglomerating plant 440, controls the sintering temperature of this agglomerating plant.
This gas control system 800 is connected with this first inlet mouth 236, the second inlet mouth 436 and the 3rd inlet mouth 536.
This first transmission mechanism 210, the second transmission mechanism 310, the 3rd transmission mechanism 410 and the 4th transmission mechanism 510 are magnetic force coupling gearing device or mechanical drive.
This first powder feeding device 220, the second powder feeding device 320, the 3rd powder feeding device 420 and the 4th powder feeding device 520 are respectively the screw rod being coaxially arranged in this first boiler tube 230, the second boiler tube 330, the 3rd boiler tube 430 and the 4th boiler tube 530, this screw rod comprises screw wing, can drive powder along the axial advancement of boiler tube by rotation, the ratio of the external diameter of this screw wing and place boiler tube internal diameter be 0.90 to 0.99.
This first boiler tube 230, the second boiler tube 330, the 3rd boiler tube 430 and the 4th boiler tube 530 can be stainless steel tube, and cross section is circular ring type, and the inwall of this first boiler tube 230 and the second boiler tube 330 has surface coating layer, prevent that powder from sticking on the tube wall of boiler tube.The material of this surface coating layer is tetrafluoroethylene or pottery.
The iron lithium phosphate preparation facilities that the utility model embodiment provides has following characteristics: first, there is the design of " two ends air inlet; give vent to anger in centre ", in powder dewatering system 200, the 3rd temperature sintering system 400 and 500 air inlets of powder cooling system, at the second temperature sintering system 300 Exhaust Gas, can avoid a large amount of obnoxious flavoures that produce in the second temperature sintering system 300 to affect the synthetic of iron lithium phosphate.Secondly, from the output that is input to product of raw material, adopt stainless-steel seamless pipe, aspect power transmission, adopt magnetic force coupling gearing device, avoided the gas leakage of interface.Again, the consistence of product is the important problem of puzzlement iron lithium phosphate product always, the iron lithium phosphate preparation facilities of the utility model embodiment is controlled the gap of powder feeding device and boiler tube inwall, avoid powder in the residue problem of progradation, guarantee that product is synthetic under same sintering condition, greatly improved the consistence of product.And, for the problem of the sticky wall of the carbon sources such as sucrose, boiler tube inner wall surface has been carried out to antiseized wall and has processed.In addition, the impurity in preparation process can affect the chemical properties such as iron lithium phosphate capacity, and this device adopts stainless steel as the material of boiler tube or by boiler tube inwall being carried out to ceramic surface processing, has avoided the introducing of the metallic impurity such as iron.The iron lithium phosphate preparation facilities that the utility model provides has been realized product large-scale industrial production, has greatly improved the production efficiency 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 preparation facilities, is characterized in that, comprises powder input system, powder dewatering system, the second temperature sintering system, the 3rd temperature sintering system, powder cooling system, powder output system, circuit control system and gas control system,
This powder dewatering system comprises the first transmission mechanism, the first powder feeding device, the first boiler tube and the first temperature-adjusting heating device, this first boiler tube comprises the first inlet mouth of the first powder entering end, the first flour extraction end and close this first powder entering end, and this first powder entering end is connected with this powder input system;
This second temperature sintering system comprises the second transmission mechanism, the second powder feeding device, the second boiler tube and the second temperature agglomerating plant, this second boiler tube comprises the venting port of the second powder entering end, the second flour extraction end and close the second flour extraction end, and the second powder entering end of this second boiler tube is directly communicated with the first flour extraction end of this first boiler tube;
The 3rd temperature sintering system comprises the 3rd transmission mechanism, the 3rd powder feeding device, the 3rd boiler tube and the 3rd temperature agglomerating plant, the 3rd boiler tube comprises the 3rd powder entering end, the 3rd flour extraction end and the second inlet mouth, and the 3rd powder entering end of the 3rd boiler tube is communicated with the second flour extraction end of the second boiler tube;
This powder cooling system comprises the 4th transmission mechanism, the 4th powder feeding device, the 4th boiler tube and refrigerating unit, the 4th boiler tube comprises the 4th powder entering end, the 4th flour extraction end and the 3rd inlet mouth, the 4th powder entering end of the 4th boiler tube is communicated with the 3rd flour extraction end of the 3rd boiler tube, and the 4th flour extraction end is connected with this powder output system.
2. iron lithium phosphate preparation facilities as claimed in claim 1, is characterized in that, this first transmission mechanism, the second transmission mechanism, the 3rd transmission mechanism and the 4th transmission mechanism are magnetic force coupling gearing device or mechanical drive.
3. iron lithium phosphate preparation facilities as claimed in claim 1, it is characterized in that, the cross section of this first boiler tube, the second boiler tube, the 3rd boiler tube and the 4th boiler tube is circular ring type, and the inwall of this first boiler tube and the second boiler tube has surface coating layer, the material of this surface coating layer is tetrafluoroethylene or pottery.
4. iron lithium phosphate preparation facilities as claimed in claim 1, it is characterized in that, this the first powder feeding device, the second powder feeding device, the 3rd powder feeding device and the 4th powder feeding device are respectively the screw rod being coaxially arranged in this first boiler tube, the second boiler tube, the 3rd boiler tube and the 4th boiler tube, this screw rod comprises screw wing, and the ratio of the external diameter of this screw wing and place boiler tube internal diameter is 0.90 to 0.99.
5. iron lithium phosphate preparation facilities as claimed in claim 1, is characterized in that, this second boiler tube and the 3rd boiler tube are for being horizontally disposed with, and this first boiler tube and level are an angle a, 0 ° of <a≤30 °.
6. iron lithium phosphate preparation facilities as claimed in claim 5, is characterized in that, the 4th boiler tube and level are an angle b, 0 ° of <b≤30 °.
7. iron lithium phosphate preparation facilities as claimed in claim 1, it is characterized in that, the 3rd powder entering end of the 3rd boiler tube is connected by the first blanking channel with the second flour extraction end of the second boiler tube, and the 3rd flour extraction end of the 3rd boiler tube is connected by the second blanking channel with the 4th powder entering end of the 4th boiler tube.
8. iron lithium phosphate preparation facilities as claimed in claim 1, is characterized in that, this refrigerating unit comprises the cooling water pipe being set in outside the 4th boiler tube.
9. iron lithium phosphate preparation facilities as claimed in claim 1, it is characterized in that, this circuit control system of this circuit control system comprises transmission control system and boiler tube heating control system, this transmission control system is connected with this first transmission mechanism, the second transmission mechanism, the 3rd transmission mechanism and the 4th transmission mechanism, and this boiler tube heating control system is connected with this second temperature agglomerating plant and the 3rd temperature agglomerating plant.
10. iron lithium phosphate preparation facilities as claimed in claim 1, is characterized in that, this gas control system is connected with this first inlet mouth, the second inlet mouth and the 3rd inlet mouth.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320852541.8U CN203728581U (en) | 2013-12-23 | 2013-12-23 | Lithium iron phosphate preparation device |
| PCT/CN2014/089739 WO2015096550A1 (en) | 2013-12-23 | 2014-10-28 | Lithium iron phosphate preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320852541.8U CN203728581U (en) | 2013-12-23 | 2013-12-23 | Lithium iron phosphate preparation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203728581U true CN203728581U (en) | 2014-07-23 |
Family
ID=51198668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320852541.8U Expired - Lifetime CN203728581U (en) | 2013-12-23 | 2013-12-23 | Lithium iron phosphate preparation device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203728581U (en) |
| WO (1) | WO2015096550A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015096550A1 (en) * | 2013-12-23 | 2015-07-02 | 江苏华东锂电技术研究院有限公司 | Lithium iron phosphate preparation device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213449A (en) * | 2021-04-22 | 2021-08-06 | 湖南阿斯米科技有限公司 | Continuous reaction treatment method for graphite cathode material/phosphate and ternary anode material of lithium ion battery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092699B (en) * | 2009-12-11 | 2013-06-26 | 河南联合新能源有限公司 | Method for preparing lithium iron phosphate by sintering lithium iron phosphate precursor and microwave sintering equipment |
| CN203728581U (en) * | 2013-12-23 | 2014-07-23 | 江苏华东锂电技术研究院有限公司 | Lithium iron phosphate preparation device |
-
2013
- 2013-12-23 CN CN201320852541.8U patent/CN203728581U/en not_active Expired - Lifetime
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2014
- 2014-10-28 WO PCT/CN2014/089739 patent/WO2015096550A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015096550A1 (en) * | 2013-12-23 | 2015-07-02 | 江苏华东锂电技术研究院有限公司 | Lithium iron phosphate preparation device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015096550A1 (en) | 2015-07-02 |
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