CN211274567U - Preparation device of transition metal lithium oxide - Google Patents
Preparation device of transition metal lithium oxide Download PDFInfo
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- CN211274567U CN211274567U CN201920766656.2U CN201920766656U CN211274567U CN 211274567 U CN211274567 U CN 211274567U CN 201920766656 U CN201920766656 U CN 201920766656U CN 211274567 U CN211274567 U CN 211274567U
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- bed reactor
- fixed bed
- gas
- inlet
- solid separator
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- 229910001947 lithium oxide Inorganic materials 0.000 title claims abstract description 17
- 229910052723 transition metal Inorganic materials 0.000 title claims abstract description 17
- -1 transition metal lithium oxide Chemical class 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 36
- 239000007787 solid Substances 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 239000000919 ceramic Substances 0.000 claims abstract description 25
- 238000009826 distribution Methods 0.000 claims abstract description 13
- 230000005855 radiation Effects 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 description 26
- 238000006243 chemical reaction Methods 0.000 description 14
- 229910010293 ceramic material Inorganic materials 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000012071 phase Substances 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 229910052574 oxide ceramic Inorganic materials 0.000 description 2
- 239000011224 oxide ceramic Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a preparation device of transition metal lithium oxide, which comprises a fixed bed reactor; the fixed bed reactor is provided with a ceramic inner wall surface, an outer surrounding type heating device is arranged outside the fixed bed reactor, a plurality of radiation heating elements are arranged in an inner cavity, and a gas distribution component is arranged at the bottom of the inner cavity; the plurality of radiation heating elements are uniformly distributed on the surface of the ceramic inner wall by taking the central axis as a center; the material buffer tank is connected with a feed inlet of the fixed bed reactor; the gas-solid separator is provided with an inlet, a top outlet and a bottom outlet, and the inlet of the gas-solid separator is connected with the upper part of the fixed bed reactor; the inlet of the heat exchanger is connected with the top outlet of the gas-solid separator; and the vacuumizing device is connected with the heat exchanger.
Description
Technical Field
The utility model belongs to the technical field of the lithium cell, especially, relate to a preparation facilities of transition metal lithium oxide.
Background
Transition metal lithium oxide is widely used as an electrode material for rechargeable lithium secondary batteries, and realizes a 'rocking chair type' charge and discharge process through repeated deintercalation of lithium. The transition metal lithium oxide is an important new energy battery material and has a wide market. At present, in the synthesis process of transition metal lithium oxide, a generally adopted production mode is to load reaction materials into a sagger, then the sagger is placed in a tunnel kiln, a roller kiln, a pushed slab kiln and the like to realize high-temperature reaction, and meanwhile, the interior of the kiln is protected by atmosphere.
The production process of the transition metal lithium oxide is actually a high-temperature gas-solid two-phase reaction under the protection of atmosphere, and three main factors influencing the reaction rate of the gas-solid two-phase reaction are provided, specifically, the efficiency that gas diffuses to the gas-solid two-phase interface through a gas film interface is firstly realized; secondly, the diffusion rate of the gas in the reaction product solid; third, the diffusion rate of lithium ions between solid phase interfaces. Increasing the contact efficiency of the atmosphere and the reactant solids can promote gas-solid two-phase reactions, which require the particles to remain loose to avoid agglomeration. However, in the high-temperature sagger sintering mode, the sintering material is agglomerated at high temperature to form a hard plate, and although the upper surface of the hard plate is contacted with gas, the gas is not beneficial to fully contacting particles at the bottom of the plate, and the waste gas is not beneficial to timely discharging. The sintering mode of the sagger can fully react only under the condition of small material filling thickness, so that the material filling thickness is limited, and the material filling thickness is generally below 10cm, thereby influencing the production efficiency and the industrialization scale.
SUMMERY OF THE UTILITY MODEL
The utility model provides a preparation facilities of transition metal lithium oxide, the utility model provides a device can realize serialization, the mass production of transition metal lithium oxide to effectively solved the insufficient problem of gas-solid phase contact, the transition metal lithium oxide that obtains has excellent electrochemical properties.
The utility model provides a preparation device of transition metal lithium oxide, which comprises a fixed bed reactor;
the fixed bed reactor is provided with a ceramic inner wall surface, an outer surrounding type heating device is arranged outside the fixed bed reactor, a plurality of radiation heating elements are arranged in an inner cavity, and a gas distribution component is arranged at the bottom of the inner cavity;
the plurality of radiation heating elements are uniformly distributed on the surface of the ceramic inner wall by taking the central axis as a center;
the material buffer tank is connected with a feed inlet of the fixed bed reactor;
the gas-solid separator is provided with an inlet, a top outlet and a bottom outlet, and the inlet of the gas-solid separator is connected with the upper part of the fixed bed reactor;
the inlet of the heat exchanger is connected with the top outlet of the gas-solid separator;
and the vacuumizing device is connected with the heat exchanger.
Preferably, a ceramic lining is arranged in the material buffer tank.
Preferably, the fixed bed reactor is provided with a gas inlet, and the gas inlet is provided with a gas flow rate control device.
Preferably, the diameter of the fixed bed reactor is 0.4-6 m;
the height of the fixed bed reactor is 1-18 m.
Preferably, a spiral feeder is arranged at the outlet of the material buffer tank.
Preferably, a pressure gauge and a vacuum gauge are arranged at the top of the fixed bed reactor.
The utility model provides a preparation device of transition metal lithium oxide, which comprises a fixed bed reactor; the fixed bed reactor is provided with a ceramic inner wall surface, an outer surrounding type heating device is arranged outside the fixed bed reactor, a plurality of radiation heating elements are arranged in an inner cavity, and a gas distribution component is arranged at the bottom of the inner cavity; the plurality of radiation heating elements are uniformly distributed on the surface of the ceramic inner wall by taking the central axis as a center; the material buffer tank is connected with a feed inlet of the fixed bed reactor; the gas-solid separator is provided with an inlet, a top outlet and a bottom outlet, and the inlet of the gas-solid separator is connected with the upper part of the fixed bed reactor; the inlet of the heat exchanger is connected with the top outlet of the gas-solid separator; and the vacuumizing device is connected with the heat exchanger. The utility model provides a preparation facilities has set up heating element respectively in fixed bed reactor's inside and outside, has solved fixed reaction bed and has heated inhomogeneous problem in the calcination process, and the position that has the contact with the material has all designed ceramic inside lining, avoids the material to reaction unit's corruption and metal ion's pollution.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a device for preparing a transition metal lithium oxide according to the present invention;
wherein, 1 is a material buffer tank; 1-1 is a buffer tank ceramic lining; 2 is a moving bed; 2-1 is an external kiln; 2-2 is moving bed ceramic lining; 2-3 is a gas distribution component; 3 is a gas-solid separator; 4 is a material collecting tank; 5 is a heat exchanger; 6-1 to 6-10 are valves; 7-1 is a vacuum gauge, and 7-2 is a pressure gauge; 8 is a vacuum pumping device; 9 is a gas flow rate control device;
fig. 2 is a sectional top view of the moving bed reactor of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model also provides a preparation device of the transition metal lithium oxide, which comprises a fixed bed reactor;
the fixed bed reactor is provided with a ceramic inner wall surface, an outer surrounding type heating device is arranged outside the fixed bed reactor, a plurality of radiation heating elements are arranged in an inner cavity, and a gas distribution component is arranged at the bottom of the inner cavity;
the plurality of radiation heating elements are uniformly distributed on the surface of the ceramic inner wall by taking the central axis as a center;
the material buffer tank is connected with a feed inlet of the fixed bed reactor;
the gas-solid separator is provided with an inlet, a top outlet and a bottom outlet, and the inlet of the gas-solid separator is connected with the upper part of the fixed bed reactor;
the inlet of the heat exchanger is connected with the top outlet of the gas-solid separator;
and the vacuumizing device is connected with the heat exchanger.
The structure schematic diagram of the preparation device is shown in fig. 1, wherein 1 is a material buffer tank; 1-1 is a buffer tank ceramic lining; 2 is a fixed bed; 2-1 is an external kiln; 2-2 is a fixed bed ceramic lining; 2-3 is a gas distribution component; 3 is a gas-solid separator; 4 is a material collecting tank; 5 is a heat exchanger; 6-1 to 6-10 are valves; 7-1 is a vacuum gauge, and 7-2 is a pressure gauge; 8 is a vacuum pumping device; and 9 is a gas flow rate control device.
The utility model discloses in, fixed bed reactor inner structure is shown as figure 2, the inside lining surface that is provided with ceramic material and makes of fixed bed reactor for lithium salt is to reaction unit's corruption in the prevention material, also prevents to have metal ion to pollute the product simultaneously. The thickness of the ceramic lining is preferably 0.1-20 cm, more preferably 1-15 cm, and most preferably 5-10 cm; the ceramic material is preferably one or more of oxide ceramic, nitride ceramic, carbide ceramic and ceramic composite material, and more preferably oxide ceramic or composite ceramic material.
A plurality of radiation heating elements are arranged in the inner cavity of the fixed bed reactor, and are uniformly distributed on the surface of the ceramic inner wall by taking the central axis as the center; the outside is provided with outer surrounding type heating device, is favorable to fixed bed reactor inside temperature distribution more even. And the external heating device is externally wrapped with a heat-insulating material. The surrounding heating device is not limited to electric heating, and may be gas heating or other heating methods. The top of the fixed bed is provided with a vacuum gauge and a pressure gauge for monitoring the pressure in the fixed bed reactor.
And a gas flow rate control device is arranged at the bottom of the fixed bed.
Fixed bed reactor's bottom is provided with the gas distribution component, the gas distribution component is used for the gaseous air current evenly distributed that lets in the admission line, the utility model discloses it is right the structure of gas distribution component does not have special restriction, adopt the gas distribution component that technical staff commonly used in the field can. And the gas inlet pipeline is provided with a gas speed control device for controlling the speed and the direction of the gas flow.
The utility model discloses it is right fixed bed reactor's size does not have special restriction, and is concrete in the embodiment of the utility model, can adopt the diameter to be 6m, highly be 18 m's fixed bed reactor, perhaps the diameter is 0.4m, highly be 3 m's fixed bed reactor.
The utility model discloses in, the export of material buffer tank with fixed bed reactor's feed inlet is connected for in letting in the fixed bed reactor with reaction raw materials, the inner wall surface that the material buffer tank was made by corrosion-resistant material can keep out the corruption of lithium salt, simultaneously can not with the material takes place to react and arouses the pollution. The corrosion-resistant material is preferably a ceramic material such as alumina, zirconia, tungsten carbide and the like, a polymer material such as teflon, polyurethane, nylon and the like, or a corrosion-resistant metal alloy material.
Preferably, be provided with spiral feeder in the material buffer tank, or rely on modes such as gravity free fall, malleation transport, negative pressure transport to realize. The surface of the screw feeder, which is in contact with the material, has a surface made of a wear and corrosion resistant material.
The utility model discloses in, gas-solid separator is provided with import, top export and bottom export, gas-solid separator's import with fixed bed reactor's upper portion export is connected. The utility model discloses in, the preferred cyclone that is preferred to the gas-solid separation ware, cyclone's material is selected from high temperature resistant, corrosion-resistant metal or metal alloy material or by the material that has the inner wall surface that ceramic material made, cyclone can separate the solid particle that the air current smugglied secretly, prevents that the workshop air from receiving the pollution.
And a material collecting tank is connected to an outlet at the bottom of the gas-solid separator and is used for collecting solid materials carried by the airflow.
The top outlet of the gas-solid separator is connected with a heat exchanger for recovering heat in the discharged waste gas, and the discharged waste gas is subjected to heat exchange through the heat exchanger to preheat inlet gas, so that heat loss is reduced, and energy consumption is reduced.
And the upper part of the heat exchanger is connected with a vacuumizing device for vacuumizing the interior of the reaction system so as to control the pressure of the reaction system.
The utility model provides a preparation device of transition metal lithium oxide, which comprises a fixed bed reactor; the fixed bed reactor is provided with a ceramic inner wall surface, an outer surrounding type heating device is arranged outside the fixed bed reactor, a plurality of radiation heating elements are arranged in an inner cavity, and a gas distribution component is arranged at the bottom of the inner cavity; the plurality of radiation heating elements are uniformly distributed on the surface of the ceramic inner wall by taking the central axis as a center; the material buffer tank is connected with a feed inlet of the fixed bed reactor; the gas-solid separator is provided with an inlet, a top outlet and a bottom outlet, and the inlet of the gas-solid separator is connected with the upper part of the fixed bed reactor; the inlet of the heat exchanger is connected with the top outlet of the gas-solid separator; and the vacuumizing device is connected with the heat exchanger. The utility model provides a preparation facilities has set up heating element respectively in fixed bed reactor's inside and outside, has solved fixed reaction bed and has heated inhomogeneous problem in the calcination process, and the position that has the contact with the material has all designed ceramic inside lining, avoids the material to reaction unit's corruption and metal ion's pollution.
Claims (6)
1. A preparation device of transition metal lithium oxide comprises a fixed bed reactor;
the device is characterized in that the fixed bed reactor is provided with a ceramic inner wall surface, an outer surrounding type heating device is arranged outside the fixed bed reactor, a plurality of radiation heating elements are arranged in an inner cavity, and a gas distribution component is arranged at the bottom of the fixed bed reactor;
the plurality of radiation heating elements are uniformly distributed on the surface of the ceramic inner wall by taking the central axis as a center;
the material buffer tank is connected with a feed inlet of the fixed bed reactor;
the gas-solid separator is provided with an inlet, a top outlet and a bottom outlet, and the inlet of the gas-solid separator is connected with the upper part of the fixed bed reactor;
the inlet of the heat exchanger is connected with the top outlet of the gas-solid separator;
and the vacuumizing device is connected with the upper part of the heat exchanger.
2. The manufacturing apparatus according to claim 1, wherein a ceramic lining is provided inside the material buffer tank.
3. A production apparatus according to claim 1, wherein the fixed-bed reactor is provided with a gas inlet provided with a gas flow rate control device.
4. The production apparatus according to claim 1, wherein the diameter of the fixed bed reactor is 0.4 to 6 m;
the height of the fixed bed reactor is 1-18 m.
5. The manufacturing apparatus as set forth in claim 1, wherein a screw feeder is provided at an outlet of the material buffer tank.
6. The production apparatus as set forth in claim 1, wherein a pressure gauge and a vacuum gauge are provided on the top of the fixed bed reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920766656.2U CN211274567U (en) | 2019-05-24 | 2019-05-24 | Preparation device of transition metal lithium oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920766656.2U CN211274567U (en) | 2019-05-24 | 2019-05-24 | Preparation device of transition metal lithium oxide |
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| Publication Number | Publication Date |
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| CN211274567U true CN211274567U (en) | 2020-08-18 |
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| CN201920766656.2U Active CN211274567U (en) | 2019-05-24 | 2019-05-24 | Preparation device of transition metal lithium oxide |
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| Country | Link |
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| CN (1) | CN211274567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015699A (en) * | 2019-05-24 | 2019-07-16 | 山东泽石新材料科技有限公司 | A kind of preparation method and device of transition metal oxidate for lithium |
-
2019
- 2019-05-24 CN CN201920766656.2U patent/CN211274567U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015699A (en) * | 2019-05-24 | 2019-07-16 | 山东泽石新材料科技有限公司 | A kind of preparation method and device of transition metal oxidate for lithium |
| CN110015699B (en) * | 2019-05-24 | 2024-01-30 | 山东泽石新材料科技有限公司 | Preparation method and device of transition metal lithium oxide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHANDONG YUHUANG CHEMICAL Co.,Ltd. Assignor: Shandong Zeshi New Material Technology Co.,Ltd. Contract record no.: X2024980003478 Denomination of utility model: A preparation device for transition metal lithium oxide Granted publication date: 20200818 License type: Common License Record date: 20240326 |