CN219596600U - Surface treatment and drying integrated device for silicon-carbon material - Google Patents
Surface treatment and drying integrated device for silicon-carbon material Download PDFInfo
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- CN219596600U CN219596600U CN202320675198.8U CN202320675198U CN219596600U CN 219596600 U CN219596600 U CN 219596600U CN 202320675198 U CN202320675198 U CN 202320675198U CN 219596600 U CN219596600 U CN 219596600U
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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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Abstract
The utility model discloses a surface treatment and drying integrated device for a silicon-carbon material, which comprises a spray drying system, a surface treatment system, a storage tank, an inert gas tank and a feeding system, wherein the spray drying system, the surface treatment system, the storage tank, the inert gas tank and the feeding system are fixedly arranged on a frame and integrated into a whole; the spray drying system, the surface treatment system and the storage tank are integrated into an integrated device. The spray drying system is internally divided into a spray drying cavity at the upper end and a deep drying cavity at the lower end by a group of conical plates, and an atomizer, a feeding pipeline and an air inlet pipeline are arranged on the spray drying cavity; the cone tip of the conical plate faces downwards, and a space is reserved between the atomizer and the conical plate; the surface treatment system comprises a machine body and a cylindrical reaction cylinder arranged in the machine body, wherein a stirring piece is arranged in the reaction cylinder in a hanging mode, and a heating plate is arranged on the outer wall of the reaction cylinder. According to the equipment, the surface treatment device and the drying device are combined, so that the drying effect is improved, the material is rapidly subjected to surface treatment under the anaerobic condition, the risk of oxidation of the material is effectively reduced, and the surface treatment effect is optimized.
Description
Technical Field
The utility model relates to the field of preparation of lithium battery anode materials, in particular to a surface treatment and drying integrated device for a silicon-carbon material.
Background
The spray drying is a material drying method, and the silicon-carbon material mixed in the organic solvent is also required to be dried in the preparation process of the lithium battery anode silicon-carbon material, so that the spray drying is a relatively widely used method at present, but the material is often not sufficiently dried by the heated gas alone. The utility model provides a spray drying and surface treatment integrated device, which solves the problems in the prior art.
Disclosure of Invention
Aiming at the defects and the problems in the prior art, the utility model aims to provide a surface treatment and drying integrated device for a silicon-carbon material, namely a device integrating spray drying and surface treatment, which has good drying effect and high raw material utilization rate.
The utility model is realized by the following technical scheme:
the surface treatment and drying integrated device for the silicon-carbon material comprises a feeding system, a surface treatment system, a storage tank, an inert gas tank and a spray drying system, wherein an organic solvent for surface treatment is placed in the storage tank, inert gas is stored in the inert gas tank, and the surface treatment system is used for mixing the organic solvent with materials so as to carry out surface treatment on the materials; the spray drying system, the surface treatment system, the storage tank, the inert gas tank and the feeding system are fixedly arranged on the frame and integrated into an integrated device.
The outlet end of the feeding system is communicated with the feeding port of the surface treatment system through a pipeline; the outlet end of the surface treatment system is communicated with a feed inlet of the spray drying system through a pipeline and a feed pump; the storage tank is communicated with the surface treatment system through an anti-corrosion pipeline and an infusion pump; the inert gas of the inert gas tank is input into the surface treatment system through a pipeline and a gas transmission pump, so that the reaction area of the surface treatment system forms an anaerobic environment.
The surface treatment system comprises a machine body and a cylindrical reaction cylinder arranged in the machine body, wherein a feeding pipeline, an air inlet pipeline and a solvent inlet pipe are arranged outside the reaction cylinder, a stirring piece is arranged in the reaction cylinder in a hanging manner, and the feeding pipeline is used for connecting the reaction cylinder with a feeding system so that the material subjected to spray drying treatment is conveyed into the reaction cylinder; the air inlet pipeline is a pipeline connected with the inert gas tank, so that an oxygen-free atmosphere is created in the reaction cylinder; the solvent inlet pipe connects the reaction cylinder with the storage tank; a group of cylindrical heating plates or a plurality of groups of upright heating plates which are uniformly distributed are arranged on the outer wall of the reaction cylinder and are used for heating and maintaining the temperature inside the reaction cylinder;
the spray drying system is internally divided into a spray drying cavity at the upper end and a deep drying cavity at the lower end by a group of conical plates, the top end of the spray drying system is provided with a hot air blower, the tail end of the spray drying system is provided with a receiving tank, an atomizer, a feeding pipeline for peripheral materials and a hot air inlet pipeline are arranged in the spray drying cavity, one end of the hot air inlet pipeline is connected with the hot air blower, the other end of the hot air inlet pipeline is connected with the atomizer, the conical plates are arranged below the atomizer, and the atomizer is connected with the feeding pipeline and the hot air inlet pipeline; the cone tip of the conical plate faces downwards, and a sufficient distance is reserved between the atomizer and the conical plate; an atomizer, a feeding pipeline for peripheral materials and a hot gas inlet pipeline are arranged in the spray drying cavity.
Further, a plurality of layers of annular drying plates are arranged in the deep drying cavity, and the annular drying plates are conical and have cone openings facing downwards. In the concrete implementation, the silicon-carbon raw material is input through a feeding pipeline, the hot air is input into a hot air inlet pipeline, the raw material is dried in a spray drying cavity, and the raw material is brought into a deep drying cavity through the continuous hot air input into the hot air inlet pipeline, wherein a plurality of conical annular drying plates are arranged in the deep drying cavity, so that the raw material can slide smoothly, and the effect of drying the raw material is also achieved.
Further, a servo motor is arranged above the reaction cylinder and fixed on the machine body through a mounting frame, and the power transmission assembly is connected with the stirring piece so as to drive the stirring piece to rotate.
Further, a conical discharge hole is arranged below the reaction cylinder and used for discharging the materials after the surface treatment is finished.
Further, safety valves are arranged on connecting pipelines among the systems and at inlets and outlets of the systems.
Further, the feeding system can adopt a star discharger, the upper part of the feeding system receives the material discharged by the discharger, the rotary impeller is used for conveying the material and also used for sealing, and air is prevented from being sucked from a discharge hole in the pneumatic conveying process.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the spray drying device is divided into the spray drying cavity and the deep drying cavity, so that the drying effect can be effectively increased, the drying time of materials can be prolonged by using the drying plate, and compared with the traditional atomization drying device, the device has better macroscopic effect.
2. According to the utility model, the surface treatment device and the spray drying device are integrated, so that the risk of oxidization of the silicon-carbon material in the treatment process is greatly reduced, and the operation process is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
FIG. 2 is a schematic diagram of the internal architecture of a surface treatment system according to the present utility model.
FIG. 3 is a schematic diagram of the internal structure of a spray drying system according to the present utility model.
Illustration of: 1-a spray drying system, 10-a spray drying cavity, 11-an atomizer, 12-a deep drying cavity, 13-a conical plate, 14-an annular drying plate, 15-a hot gas inlet pipeline, 16-a feeding pipeline, 17-a hot air heater and 18-a receiving tank;
2-surface treatment system, 20-heating plate, 21-servo motor, 22-feeding pipeline, 23-discharge port, 24-machine body, 25-reaction cylinder, 26-air inlet pipeline, 27-solvent feeding pipe, 28-power transmission assembly and 29-stirring piece;
3-a storage tank; 4-an inert gas tank; 5-feeding system and 6-frame.
Detailed Description
For the purpose of making the technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Examples
Referring to fig. 1, 2 and 3, an apparatus for integrating spray surface treatment and drying according to the present embodiment includes a spray drying system 1, a surface treatment system 2, a storage tank 3, an inert gas tank 4 and a feeding system 5; the spray drying system 1, the surface treatment system 2, the storage tank 3, the inert gas tank 4 and the feeding system 5 are fixedly arranged on the frame 6 and integrated into an integrated device. The silicon-carbon raw material sequentially enters the surface treatment system 2 from the feeding system 5 to react with the organic solvent for surface treatment, and then enters the spray drying system 1 for drying.
The feeding system 5 is a silicon-carbon raw material discharging tool, and silicon-carbon raw materials enter the surface treatment system 2 from the feeding system 5 through a feeding pipeline; the feeding system 5 can adopt a star discharger, the upper part of the feeding system receives silicon-carbon materials, the rotary impeller is used for conveying the silicon-carbon materials and also for sealing, and air is prevented from being sucked from a discharge hole in the pneumatic conveying process.
The storage tank 3 is internally provided with an organic solvent for surface treatment, the organic solvent adopts any organic solvent allowed in the field, the storage tank 3 is communicated with the surface treatment system 2 through an anti-corrosion pipeline and an infusion pump, and the surface treatment system 2 mixes the organic solvent with materials so as to carry out surface treatment on the materials;
the inert gas tank 4 stores an inert gas, which is any inert gas allowed in the art such as helium, argon, etc., for creating an oxygen-free atmosphere for the reaction area inside the surface treatment system 2; the inert gas tank 4 is fed into the surface treatment system 2 through a pipe and a gas feed pump so that the reaction area of the surface treatment system 2 forms an oxygen-free environment.
The silicon-carbon material treated by the surface treatment system 2 is input into the spray drying system 1 through a pipeline and a feed pump, and then the silicon-carbon material is dried through hot gas;
the surface treatment system 2 comprises a machine body 24 and a cylindrical reaction cylinder 25 arranged in the machine body 24, wherein a feeding pipeline 22, an air inlet pipeline 26 and a solvent inlet pipe 27 are arranged outside the reaction cylinder 25, a stirring piece 29 is arranged in the reaction cylinder 25 in a hanging manner, and the feeding pipeline 22 is used for connecting the reaction cylinder 25 with the feeding system 5 so that silicon carbon materials are conveyed into the reaction cylinder 25; the air inlet pipeline 26 is a pipeline connected with the inert gas tank 4, so that an oxygen-free atmosphere is created inside the reaction cylinder 25; the solvent inlet 27 connects the reaction cartridge 25 to the storage tank 3. The servo motor 21 is installed above the reaction cylinder 25, the servo motor 21 is fixed on the machine body 24, the servo motor 21 is connected with the stirring piece 29 through the power transmission assembly 28, and then the stirring piece 29 is driven to rotate in the reaction cylinder 25 and is used for stirring the silicon-carbon material to enable the silicon-carbon material to be rapidly and efficiently mixed with the organic solvent, the power transmission assembly 28 adopts a conventional rotation driving assembly such as a shaft, a shaft seat, a bearing and the like, the servo motor 21 provides power, the power transmission assembly 28 transmits power to drive the shaft body of the stirring piece 29 to rotate, and then a stirring knife or a stirring rod at the bottom of the stirring piece 29 is driven to stir the material. A conical discharge hole 23 is arranged below the reaction cylinder 25 and is used for discharging the materials after the surface treatment to the spray drying system 1. A set of cylindrical heating plates 20 or a plurality of sets of uniformly distributed upright heating plates 20 for heating and maintaining the temperature inside the reaction cylinder 25 are provided at the outer wall of the reaction cylinder 25.
The spray drying system 1 is internally divided into a spray drying cavity 10 at the upper end and a deep drying cavity 12 at the lower end by a group of conical plates 13, a hot air blower 17 is arranged at the top end of the spray drying system 1, a receiving tank 18 is arranged at the tail end of the spray drying system, an atomizer 11, a material feeding pipeline 16 and a hot air inlet pipeline 15 are arranged on the spray drying cavity 10, and a reaction cylinder 25 is connected with the spray drying system 1 by the feeding pipeline 16; one end of a hot gas inlet pipeline 15 is connected with a hot air blower 17, the other end of the hot gas inlet pipeline is connected with an atomizer 11, a conical plate 13 is arranged below the atomizer 11, and the atomizer 11 is connected with a feeding pipeline 16 and the hot gas inlet pipeline 15; the conical plate 13 is pointed downwards and there is sufficient distance between the atomizer 11 and the conical plate 13. Inside the deep drying cavity 12, a plurality of layers of annular drying plates 14 are arranged, and the annular drying plates 14 are conical and have cone openings facing downwards. The hot air intake duct 15 is connected to a heater 17, and the heater 17 supplies dry hot air into the spray drying system 1 through the hot air intake duct 15. In the specific implementation, the silicon-carbon material is input through the feeding pipeline 16, the hot air is input into the hot air inlet pipeline 15, the silicon-carbon material is in mixed contact with the hot air in the atomizer 11, the silicon-carbon material is dried in the spray drying cavity 10, the raw materials are brought into the deep drying cavity 12 through the continuous hot air input into the hot air inlet pipeline 15, and a plurality of conical annular drying plates 14 are arranged in the deep drying cavity 12, so that the silicon-carbon material can slide smoothly, and the effect of drying the silicon-carbon material is added.
Safety valves are arranged on connecting pipelines among the systems and at inlets and outlets of the systems.
In some preferred embodiments, the annular drying plate 14 is further provided with a scraper (not shown) which is connected to a rotating shaft, a power system, etc. by means of a lever. The provision of the scrapers prevents the accumulation of raw materials on the annular drying plate 14.
The working procedure of this embodiment is as follows:
firstly, a valve I on a feeding pipeline 22 is opened, silicon carbon raw materials enter a reaction cylinder 25 of the surface treatment system 2 through a feeding system 5 and the feeding pipeline 22, and the valve I is closed;
opening a valve II between the storage tank 3 and the surface treatment system 2, starting an infusion pump, introducing the organic solvent into the reaction cylinder 25, and closing the valve II;
starting a valve II and a gas transmission pump between the inert gas tank 4 and the surface treatment system 2, inputting inert gas into the reaction cylinder 25 to form an anaerobic atmosphere, and closing the valve III;
the servo motor 21 is turned on, the stirring piece 29 in the reaction cylinder 25 is driven to rotate, so that the silicon-carbon material is fully contacted with the organic solvent, and the silicon-carbon material and the organic solvent are subjected to surface treatment reaction under the heating of the heating plate 20;
the silicon-carbon materials after the surface treatment reaction are dried in the spray drying cavity 10 by a feeding pump, the silicon-carbon materials enter the atomizer 11 by a feeding pipeline 16 and dry hot air through a hot air inlet pipeline 15, the silicon-carbon materials are driven by the continuously input hot air to be brought into the deep drying cavity 12 and sequentially fall onto the annular drying plates 14 of each layer, and the dried silicon-carbon materials fall into a receiving tank 18 to be collected.
The foregoing description of the preferred embodiments of the present utility model has been presented only in terms of those specific and detailed descriptions, and is not, therefore, to be construed as limiting the scope of the utility model. It should be noted that modifications, improvements and substitutions can be made by those skilled in the art without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (6)
1. The surface treatment and drying integrated device for the silicon-carbon material is characterized in that: the device comprises a feeding system (5), an inert gas tank (4), a storage tank (3), a surface treatment system (2) and a spray drying system (1); the spray drying system (1), the surface treatment system (2), the storage tank (3), the inert gas tank (4) and the feeding system (5) are fixedly arranged on a frame (6) and integrated into an integrated device; the outlet end of the feeding system (5) is communicated with the feeding port of the surface treatment system (2) through a pipeline; the outlet end of the surface treatment system (2) is communicated with the feed inlet of the spray drying system (1) through a pipeline and a feed pump; the storage tank (3) is communicated with the surface treatment system (2) through an anti-corrosion pipeline and an infusion pump; the inert gas of the inert gas tank (4) is input into the surface treatment system (2) through a pipeline and a gas transmission pump, so that a reaction area of the surface treatment system (2) forms an anaerobic environment;
the surface treatment system (2) comprises a machine body (24) and a cylindrical reaction cylinder (25) arranged in the machine body (24), wherein a feeding pipeline (22), an air inlet pipeline (26) and a solvent inlet pipe (27) are arranged outside the reaction cylinder (25), and the feeding pipeline (22) is used for connecting the reaction cylinder (25) with the feeding system (5); the air inlet pipeline (26) connects the reaction cylinder (25) with an inert gas tank (4); the solvent inlet pipe (27) connects the reaction cylinder (25) with the storage tank (3); a stirring piece (29) is arranged in the reaction cylinder (25) in a hanging manner, and a heating plate (20) is arranged on the outer wall of the reaction cylinder;
the spray drying system is characterized in that the spray drying system (1) is internally divided into a spray drying cavity (10) at the upper end and a deep drying cavity (12) at the lower end by a group of conical plates (13), a hot air blower (17) is arranged at the top end of the spray drying system (1), a material receiving tank (18) is arranged at the tail end of the spray drying system, an atomizer (11), a feeding pipeline (16) for peripheral materials and a hot air inlet pipeline (15) are arranged in the spray drying cavity (10), one end of the hot air inlet pipeline (15) is connected with the hot air blower (17), the other end of the hot air inlet pipeline is connected with the atomizer (11), the conical plates (13) are arranged below the atomizer (11), and the atomizer (11) is connected with the feeding pipeline (16) and the hot air inlet pipeline (15) in a homogeneous phase mode. The cone tip of the cone-shaped plate (13) faces downwards, and a space is arranged between the atomizer (11) and the cone-shaped plate (13).
2. The integrated surface treatment and drying apparatus for silicon-carbon materials as set forth in claim 1, wherein: the inside of the deep drying cavity (12) is provided with a plurality of layers of annular drying plates (14), and the annular drying plates (14) are conical and have cone openings facing downwards.
3. The integrated surface treatment and drying apparatus for silicon-carbon materials as set forth in claim 1, wherein: a servo motor (21) is arranged above the reaction cylinder (25), the servo motor (21) is fixed on the machine body (24), and the servo motor (21) is connected with the stirring piece (29) through a power transmission assembly (28).
4. The integrated surface treatment and drying apparatus for silicon-carbon materials as set forth in claim 1, wherein: a conical discharge hole (23) is arranged below the reaction cylinder (25).
5. The integrated surface treatment and drying apparatus for silicon-carbon materials as set forth in claim 1, wherein: safety valves are arranged on connecting pipelines among the systems and at inlets and outlets of the systems.
6. The integrated surface treatment and drying apparatus for silicon-carbon materials as set forth in claim 1, wherein: the feeding system (5) adopts a star discharger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320675198.8U CN219596600U (en) | 2023-03-30 | 2023-03-30 | Surface treatment and drying integrated device for silicon-carbon material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320675198.8U CN219596600U (en) | 2023-03-30 | 2023-03-30 | Surface treatment and drying integrated device for silicon-carbon material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219596600U true CN219596600U (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320675198.8U Active CN219596600U (en) | 2023-03-30 | 2023-03-30 | Surface treatment and drying integrated device for silicon-carbon material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219596600U (en) |
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2023
- 2023-03-30 CN CN202320675198.8U patent/CN219596600U/en active Active
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