CN111992173A - Silicon-oxygen compound batch production equipment - Google Patents
Silicon-oxygen compound batch production equipment Download PDFInfo
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- CN111992173A CN111992173A CN201910444562.8A CN201910444562A CN111992173A CN 111992173 A CN111992173 A CN 111992173A CN 201910444562 A CN201910444562 A CN 201910444562A CN 111992173 A CN111992173 A CN 111992173A
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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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/28—Moving reactors, e.g. rotary drums
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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
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- 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
- H01M4/362—Composites
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
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- 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
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- Silicon Compounds (AREA)
Abstract
The invention discloses a batch production device for a silicon-oxygen compound. The production equipment mainly comprises a reaction device, a collection system and matched subsystems for loading, conveying, sealing, vacuum, heating and the like, wherein the subsystems are orderly connected through connecting pieces and pipelines. The equipment provided by the invention can be used for continuously and automatically realizing batch preparation of the silicon-oxygen compound, and is high in mechanization degree and greatly improved in production efficiency.
Description
Technical Field
The invention relates to the field of new energy materials and chemical equipment, in particular to batch production equipment for a silicon-oxygen compound used as a lithium ion battery cathode.
Background
With the continuous deepening of the green and sustainable development reform, the energy structure of China is undergoing qualitative change, and the large-scale application of the lithium ion secondary battery in the new energy field and the electronic field is the important embodiment of the reform. But the influence of objective factors such as low specific capacity of the traditional lithium iron anode material and poor stability of the ternary anode material is limited, the specific capacity of the lithium ion battery is improved and weak, and the improvement is difficult in a short period. In order to break through the limitation, development of a cathode material with ultrahigh specific capacity becomes one of the first-choice approaches, and research shows that the specific capacity of the cathode material is greatly increased by 500 mA h/g, the specific capacity of a lithium ion battery can be improved by more than 15%, the effect is obvious, while the theoretical specific capacity of the traditional graphite cathode is only 372 mA h/g and reaches the upper limit, so the development of the cathode material of the lithium ion battery with high specific capacity is imperative.
The silicon-based negative electrode material has the theoretical specific capacity as high as 4200 mA h/g, which is 10 times of that of the traditional graphite negative electrode, and is a research hotspot of the graphite negative electrode in recent years. The silicon-based negative electrode material can be divided into two types of silicon simple substance and silicon-oxygen compound according to the components, and the silicon-oxygen compound comprises silicon monoxide SiO and silicon oxide SiOx (0)<x<2, x ≠ 1), silica SiO2And the like, wherein the silicon-oxygen composite is the only silicon-based anode material currently realizing small-scale commercial application due to the superior stability compared with the silicon simple substance.
The mainstream preparation process of the silicon-oxygen compound takes a high-temperature solid-phase product of silicon and silicon dioxide, namely, silicon monoxide SiO, as a raw material, and then secondary high-temperature treatment is carried out to ensure that the silicon monoxide SiO is subjected to disproportionation reaction, the reaction is generally carried out in an enlarged industrial vacuum furnace, the process belongs to an intermittent process, the process is complex, the production efficiency is low, the yield and the product uniformity are difficult to ensure, and the large-scale application of the material is severely restricted.
Chinese utility model CN204973821 discloses a semi-continuous silicon oxide production apparatus, which comprises a tank, a separately arranged reaction part and a collection part, and adopts high temperature solid phase reaction to synthesize a target product. Although the equipment is improved compared with the existing equipment, the equipment still needs to be opened after the reaction is finished, and products are taken out, so that the efficiency is still low, and continuous batch production cannot be realized.
The Chinese invention patent CN105752992 discloses a method and a device for producing silicon oxide, which still adopts high-temperature solid phase reaction, the feeding mode adopts an air flow or screw method, the collection of products is still carried out intermittently although continuous feeding is realized, and the raw materials are necessarily powdery, which causes that various reactants can not be fully contacted, the uniformity of the products can not be ensured, and the powder dust is easy to appear in the conveying process of the raw materials, thus polluting the operating environment. .
Disclosure of Invention
The invention aims to provide a batch production device for a silicon-oxygen compound, which solves the problem that the existing production device cannot realize continuous production, ensures the uniformity of a product and improves the production efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the utility model provides a silicon oxygen compound batch production equipment, equipment includes at least one set of reaction unit, bears reaction unit's conveying system, does reaction unit supplies with the charging system of raw materials, guarantees the sealing system of reaction unit gas tightness, with reaction unit passes through the collection system of pipe connection, with the collection system passes through the vacuum system of pipe connection, for reaction unit provides the heating system of heat source.
Preferably, the reaction device is a round, square, rectangular or oval high-temperature-resistant container.
Preferably, the conveying system comprises a conveyor belt and a rotating wheel.
Preferably, the charging system comprises a lower hopper and a compacting plate.
Preferably, the sealing system comprises a sealing cover plate and a vacuum connected to the sealing cover plate.
Preferably, the vacuum is connected to the vacuum system by a conduit.
Preferably, the bottom of the collecting system is a hopper which is conical and provided with an opening, and the conical hopper is connected with the discharge valve.
Preferably, the other end of the emptying valve is connected with the discharging barrel.
Preferably, the collection system comprises at least one air inlet interface and an air outlet interface, wherein the air inlet interface is connected with the sealing system through a pipeline, and the air outlet interface is connected with the vacuum system through a pipeline.
Preferably, the collecting system is further externally provided with a cooling device, the cooling device is cooled by circulation of a cooling medium, and the cooling medium is air, water or other medium with good heat conduction.
Preferably, the collection system further comprises a collector disposed at a top of the collection system between the air inlet interface and the air outlet interface.
Preferably, the collector comprises a collecting plate and a rapper, the collecting plate being connected to the rapper by a bearing.
Preferably, the collecting plate is also cooled by circulating a cooling medium, which is air, water or other medium with good heat conductivity.
Preferably, said rapper is rapped by rotation and vibration.
The beneficial effects of the invention include: according to the batch production equipment for the silicon-oxygen compound, continuous production of the silicon-oxygen compound is realized through the cooperation of multiple systems, the uniformity of the product is ensured, the production efficiency is greatly improved, the degree of mechanization is high, the operation is simple, and the batch production of the silicon-oxygen compound is facilitated.
Drawings
FIG. 1 is a schematic diagram of a front view of a device component according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a front view of the components of the apparatus according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of a front view of the components of the apparatus according to one embodiment of the present invention;
FIG. 4 is a schematic diagram of a front view of the components of the apparatus according to one embodiment of the present invention;
FIG. 5 is a schematic diagram of a front view of the components of the apparatus according to one embodiment of the present invention;
FIG. 6 is a schematic diagram of a front view of the components of the apparatus according to one embodiment of the present invention;
fig. 7 is a schematic top view of a device component according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows:
as shown in FIGS. 1, 2, 3, 4 and 5, a batch production apparatus for a silicon-oxygen compound comprises at least one reaction unit 3, a transfer wheel 1 and a transfer belt 2 for carrying the reaction unit 3, a charging system 4 for supplying raw materials, a compacting plate 5 for bringing the raw materials into sufficient contact with each other, a sealing system 6 for ensuring airtightness of the reaction unit 3, a heating system 8 for supplying heat to the reaction unit 3, and a product collecting system 9.
When the reaction is carried out, the heating system 8 is started for preheating, the air outlet 11 of the collecting system 9 is communicated with the vacuum system 16 through a pipeline, the pre-vacuum is carried out to a set value, meanwhile, the reaction device 3 is arranged on the conveyor belt 2 and moves forwards to a charging station below the charging system 4 under the action of the conveyor wheel 1, reaction raw materials quantitatively enter the reaction device 3 through the charging system 4, after the charging is completed, the reaction device 3 moves to a compacting station, the reaction raw materials are compacted through a compacting plate 5 to ensure the full contact among the raw materials, after the compacting is completed, the reaction device 3 moves to a sealing station, the sealing system 6 seals the reaction device and is communicated with the vacuum system 16 through the vacuum device 7, the pre-vacuum is carried out on the sealed reaction device 3, when the vacuum degree reaches the set value, the vacuum device 7 is disconnected with the vacuum system 16, the reaction device 3 then moves to the heating station in the heating system 8, the raw materials start to react and the gaseous silicon-oxygen compound starts to generate after the temperature in the reaction device 3 reaches a set value, at the moment, under the continuous action of the vacuum system 16, the gas of the silicon-oxygen compound enters the collection system 9 through the vacuum device 7 and the gas inlet 10, when the gaseous silicon-oxygen compound contacts the collection plate 14 cooled by the cooling medium, the gaseous silicon-oxygen compound is rapidly condensed into solid and attached to the collection plate 14, under the continuous vibration and the anticlockwise transfer action of the vibrator 13, the condensed silicon-oxygen compound solid on the collection plate 14 is separated and enters the conical hopper 17 at the bottom of the collection system 9, when the silicon-oxygen compound in the conical hopper 17 is accumulated to a certain amount, the discharge valve 15 is opened, the silicon-oxygen compound solid enters the bin in the discharge valve 15, and finally enters the material barrel 12 for storage after the air pressure conversion, this operation does not destroy the vacuum of the reaction apparatus 3 and the collection system 9, and after the reaction is completed, the reaction apparatus 3 is moved to a cooling station, and enters the next reaction cycle after being cooled and deblocked.
Example two
As shown in fig. 5 and fig. 6, the present embodiment is different from the first embodiment in that the collecting plate 14 in the collecting system 9 is cooled by air, the gaseous silica complex is rapidly condensed into solid after contacting the collecting plate 14, and the rapper 10 drives the collecting plate 14 to rotate clockwise to separate the solid of the silica complex condensed on the collecting plate 14.
EXAMPLE III
As shown in fig. 7, the difference between this embodiment and the first embodiment is that the apparatus has 4 sets of reaction devices 3, during the reaction, the charging system 4 and the compacting plate 5 can sequentially or simultaneously charge and compact the 4 sets of reaction devices 3, the sealing system 6 can also sequentially or simultaneously seal the 4 sets of reaction devices 3, after the sealing, the reaction devices 3 are communicated with the vacuum system 16 through respective vacuum vessels 7 in a serial or parallel manner, pre-vacuumize, and simultaneously heat and react in the heating system 8, this embodiment greatly improves the production efficiency of a single furnace while ensuring continuous production, and during the actual operation, according to the capacity requirement, it can sequentially or cooperatively adjust single or multiple parameters such as the shape, monomer volume, number, and arrangement manner of the reaction devices 3.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. It will be apparent to those skilled in the art that other variations and modifications may be made on the above-described embodiments, and it is not necessary or necessary to exhaustively enumerate all embodiments herein. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a silicon oxygen compound batch production equipment, its characterized in that, equipment includes at least one set of reaction unit, bears reaction unit's conveying system, for reaction unit supplies with the charging system of raw materials, guarantees reaction unit gas tightness's sealing system, with reaction unit passes through the collection system of pipe connection, with the collection system passes through the vacuum system of pipe connection, for reaction unit provides the heating system of heat source.
2. The apparatus of claim 1, wherein the reaction device is a round, square, rectangular, oval refractory vessel.
3. The apparatus of claim 1, wherein the transport system comprises a conveyor belt and a rotating wheel.
4. The apparatus of claim 1, wherein the charging system comprises a lower hopper and a compacting plate.
5. The apparatus of claim 1, wherein the sealing system comprises a sealing cover and a vacuum coupled to the sealing cover, the vacuum coupled to the vacuum system via a conduit.
6. The apparatus of claim 1, wherein the bottom of the collection system is a hopper, tapered and provided with an opening, the tapered hopper is connected to a discharge valve, and the other end of the discharge valve is connected to a discharge bucket.
7. The apparatus of claim 1, wherein the collection system comprises at least one inlet port and an outlet port, wherein the inlet port is connected to the sealing system by a conduit and the outlet port is connected to the vacuum system by a conduit.
8. The apparatus of claim 1, wherein the collection system is further externally provided with a cooling device, the cooling device is cooled by circulating a cooling medium, and the cooling medium is air, water or other medium with good heat conductivity.
9. The apparatus of claim 1, wherein the collection system further comprises a collector disposed at a top of the collection system between the air inlet interface and the air outlet interface.
10. The apparatus according to claim 9, wherein said collector comprises a collecting plate and a rapper, said collecting plate is connected to said rapper through a bearing, said collecting plate is further cooled by circulation of a cooling medium, said cooling medium is air, water or other medium with good heat conductivity, and said rapper realizes rapping through rotation and vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910444562.8A CN111992173A (en) | 2019-05-27 | 2019-05-27 | Silicon-oxygen compound batch production equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910444562.8A CN111992173A (en) | 2019-05-27 | 2019-05-27 | Silicon-oxygen compound batch production equipment |
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| CN111992173A true CN111992173A (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910444562.8A Pending CN111992173A (en) | 2019-05-27 | 2019-05-27 | Silicon-oxygen compound batch production equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5096685A (en) * | 1985-07-27 | 1992-03-17 | Kawasaki Steel Corporation | Method for manufacturing fine-grained silicon monoxide |
| CN104024160A (en) * | 2012-03-22 | 2014-09-03 | 信越化学工业株式会社 | Method and system for the production of silicon oxide deposit |
| CN105752992A (en) * | 2016-04-08 | 2016-07-13 | 深圳市贝特瑞新能源材料股份有限公司 | Method for preparing silicon oxide and preparation equipment |
| CN107056016A (en) * | 2017-05-24 | 2017-08-18 | 中国建筑材料科学研究总院 | Chalcogenide glass and preparation method thereof and device |
-
2019
- 2019-05-27 CN CN201910444562.8A patent/CN111992173A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5096685A (en) * | 1985-07-27 | 1992-03-17 | Kawasaki Steel Corporation | Method for manufacturing fine-grained silicon monoxide |
| CN104024160A (en) * | 2012-03-22 | 2014-09-03 | 信越化学工业株式会社 | Method and system for the production of silicon oxide deposit |
| CN105752992A (en) * | 2016-04-08 | 2016-07-13 | 深圳市贝特瑞新能源材料股份有限公司 | Method for preparing silicon oxide and preparation equipment |
| CN107056016A (en) * | 2017-05-24 | 2017-08-18 | 中国建筑材料科学研究总院 | Chalcogenide glass and preparation method thereof and device |
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Address after: No.557 Tianma Avenue, Yunyang Economic Development Zone, Shiyan City, Hubei Province Applicant after: Hubei Wanrun New Energy Technology Co.,Ltd. Address before: No.557 Tianma Avenue, Yunyang Economic Development Zone, Shiyan City, Hubei Province Applicant before: HUBEI WANRUN NEW ENERGY TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Application publication date: 20201127 |