CN219301238U - Belt dryer for drying lithium triflate - Google Patents
Belt dryer for drying lithium triflate Download PDFInfo
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- CN219301238U CN219301238U CN202223602150.9U CN202223602150U CN219301238U CN 219301238 U CN219301238 U CN 219301238U CN 202223602150 U CN202223602150 U CN 202223602150U CN 219301238 U CN219301238 U CN 219301238U
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- transmission
- drying
- belt dryer
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- lithium triflate
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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 relates to the technical field of drying, in particular to a belt dryer for drying lithium triflate. The belt dryer comprises a drying chamber, a multi-layer conveying component, at least one heating component, at least one cooling component and a vacuum component; the drying chamber is provided with a feed inlet and a discharge outlet; each transmission component, each heating component and each cooling component are arranged in the drying cavity; the multi-layer transmission component sequentially comprises at least one layer of first transmission units and at least one layer of second transmission units from top to bottom; the heating parts are arranged below the first transmission units of each layer; the cooling component is arranged below the second transmission units of each layer; the vacuum member is in communication with the drying chamber. The belt dryer can effectively reduce solvent residues of powdery lithium triflate, and materials produced in the drying process are not easy to ball.
Description
Technical Field
The utility model relates to the technical field of drying, in particular to a belt dryer for drying lithium triflate.
Background
When the lithium triflate is applied to solid electrolyte, the stable anions can improve the structure and the composition of a passivation layer between the interface of the electrolyte and a negative electrode material, thereby being beneficial to the stability of the electrolyte, a passivation film and an electrode. When the lithium triflate is applied to a lithium battery, strict requirements are imposed on solvent residues, and certain specific solvents need to be controlled within 3000ppm or lower. However, due to finer granularity in the synthesis process, the common drying equipment firstly has overlong drying time to influence the productivity and the product quality, secondly has difficulty in controlling the solvent residue in a qualified range, even can generate the phenomenon of caking and pilling of the dried product, and thirdly has the defect of easy moisture absorption to cause decomposition to influence the product quality. For this reason, an efficient lithium triflate drying device needs to be found, and at least one of the above technical problems is solved.
Disclosure of Invention
In view of the above drawbacks of the prior art, the present utility model aims to provide a belt dryer for drying lithium triflate, which can effectively reduce solvent residues of powdery lithium triflate, and simultaneously prevent materials generated in the drying process from being easily pilled.
To achieve the above and other related objects, the present utility model provides a belt dryer for drying lithium triflate, comprising a drying chamber, a multi-layered transport member, at least one heating member, at least one cooling member, and a vacuum member; the drying chamber is provided with a feed inlet and a discharge outlet; each transmission component, each heating component and each cooling component are arranged in the drying cavity;
the multi-layer transmission component sequentially comprises at least one layer of first transmission units and at least one layer of second transmission units from top to bottom; the heating parts are arranged below the first transmission units of each layer; the cooling component is arranged below the second transmission units of each layer;
the vacuum member is in communication with the drying chamber.
Preferably, the multi-layer transmission member includes two or more layers of first transmission units and two or more layers of second transmission units in order from top to bottom;
and/or the multi-layer transmission component comprises three layers of first transmission units and two layers of second transmission units from top to bottom.
Preferably, each first transmission unit comprises a first motor, a first transmission shaft and a first transmission belt, and the first motor drives the first transmission belt to transmit through the first transmission shaft;
and/or each second transmission unit comprises a second motor, a second transmission shaft and a second transmission belt, and the second motor drives the second transmission belt to transmit through the second transmission shaft.
Preferably, the feed inlet is provided with a first feed valve;
and/or, the belt dryer further comprises a feeding bin, and the feeding port is connected with the drying chamber through the feeding bin;
and/or the discharge port is provided with a first discharge valve;
and/or the belt dryer further comprises a discharge bin, and the drying chamber is connected with the discharge bin through the discharge hole;
and/or the discharge port faces to the material conveying and discharging position of the second conveying unit nearest to the discharge port.
More preferably, the feeding bin is provided with a second feeding valve;
and/or the discharging bin is provided with a second discharging valve.
Preferably, the drying chamber further comprises at least one illumination unit, and each illumination unit is arranged on the inner wall of the drying chamber.
Preferably, the device further comprises a purging unit, wherein the purging unit faces the discharging hole.
More preferably, the device further comprises a purging unit, wherein the purging unit faces the discharging bin.
Preferably, the drying chamber further comprises at least one heating pipe, and each heating pipe is arranged on the inner wall of the drying chamber.
More preferably, at least one heating tube is in communication with at least one heating component.
The technical scheme has at least one of the following beneficial effects:
1) The utility model comprises at least one layer of first transmission unit, the heating component is arranged below each layer of first transmission unit, one-stage and multi-stage heating can be realized, namely drying at different temperature sections can be realized, and solvent solution complexation can be better carried out, so that lithium triflate with better particle size and high quality can be obtained.
2) The utility model comprises a plurality of first conveying belts, the heat exchange area of the conveying belts is large, the drying efficiency is high, and the solution residues are effectively reduced to the required range.
3) The belt dryer can meet the severe requirement of the drying material on the solvent residue, and can reduce the solvent residue of lithium triflate to 1000ppm or even to 500 ppm.
4) The multi-layer transmission component comprises at least one layer of first transmission unit and at least one layer of second transmission unit from top to bottom in sequence, the heating component is arranged below each layer of first transmission unit, the cooling component is arranged below each layer of second transmission unit, namely the upper part is a heating component (heating medium), the lower part is a cooling component (cooling medium), materials enter and exit at normal temperature, continuous production can be realized, and the dried materials can be directly packaged at the outlet.
5) The utility model comprises a feeding bin and a discharging bin, and can realize pipeline connection between a feeding hole and a discharging hole, thereby meeting continuous production.
Drawings
Fig. 1 is a schematic view of a belt dryer for drying lithium triflate according to a first embodiment of the present utility model.
Reference numerals
1. Drying chamber
2. Transmission component
21. First transmission unit
22. Second transmission unit
3. Vacuum component
4. Feed inlet
5. Discharge port
6. Feeding bin
61. Second feed valve
7. Discharging bin
8. Lighting unit
9. Purge unit
10. Heating pipe
Detailed Description
In the description of the present utility model, it should be noted that, the structures, proportions, sizes, etc. shown in the drawings attached to the present utility model are merely used in conjunction with the disclosure of the present utility model, and are not intended to limit the applicable limitations of the present utility model, so that any modification of the structures, variation of the proportions, or adjustment of the sizes, without affecting the efficacy and achievement of the present utility model, should fall within the scope of the disclosure of the present utility model. Also, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1, a belt dryer for drying lithium triflate includes a drying chamber 1, a multi-layer conveying member 2, at least one heating member, at least one cooling member, and a vacuum member 3; the drying chamber 1 is provided with a feed inlet 4 and a discharge outlet 5; each transmission part 2, each heating part and each cooling part are arranged in the drying chamber 1;
the multi-layer transmission member 2 includes at least one layer of first transmission units 21 and at least one layer of second transmission units 22 in this order from top to bottom; a heating part is arranged below each layer of first transmission units 21; a cooling component is arranged below each layer of second transmission units 22;
the vacuum member 3 communicates with the drying chamber 1.
The drying chamber 1 is in a negative pressure vacuum environment through the vacuum component 3, lithium triflate material to be dried enters the first conveying unit 21 positioned at the uppermost layer in the drying chamber 1 from the feed inlet 4, the heating component heats the material positioned on the first conveying unit 21, the heated material falls into the second layer from the first layer through gravity, the cooling component cools the material positioned on the second conveying unit 22, and the cooled material is discharged from the discharge port 5.
The belt dryer comprises at least one layer of first transmission units 21, wherein a heating component is arranged below each layer of first transmission units 21, so that one-stage and multi-stage heating (gradient heating) can be realized, even if the first transmission units of different layers have temperature differences, drying at different temperature sections can be realized, and solvolysis complexation can be better carried out, so that better particle size and high-quality lithium triflate can be obtained. The heating element may use different heating mediums such as hot water, steam, heat conducting oil, etc. The belt dryer can effectively reduce solvent residues of powdery lithium triflate, and meanwhile, materials generated in the drying process are not easy to ball, and the materials are not easy to absorb water during drying, so that the belt dryer has the advantages of high efficiency and energy saving, and can meet the process requirement that lithium triflate cannot contact high temperature and meet the capacity.
For the lithium triflate to be dried by the belt dryer is a powdery material with larger particle size, the specific gravity of the material is relatively larger, the material can be stably conveyed through the conveying component, and a dust cover or a filter screen can be added in front of the vacuum component to protect the vacuum component.
As a preferred embodiment, the multi-layer transmission component 2 comprises more than two layers of first transmission units 21 and more than two layers of second transmission units 22 from top to bottom in sequence, so that multi-stage heating (gradient heating) can be realized, even if the first transmission units of different layers have temperature differences, drying at different temperature ranges can be realized, and solvolysis can be better performed, so that lithium triflate with better particle size and high quality can be obtained; the second transmission units of different layers can have temperature difference, and the multi-stage cooling (gradient cooling) to room temperature is realized.
As a specific example, as shown in fig. 1, the multi-layered transmission member 2 includes three layers of first transmission units 21 and two layers of second transmission units 22 from top to bottom. The first layer first conveying unit can heat the lithium triflate material to be dried to a first temperature, such as 75 ℃, the second layer first conveying unit can heat the lithium triflate material to a second temperature, such as 95 ℃, the third layer first conveying unit can heat the lithium triflate material to a third temperature, such as 115 ℃, and the first layer second conveying unit and the second layer second conveying unit can cool the material to normal temperature.
In a specific embodiment, each first transmission unit 21 includes a first motor, a first transmission shaft, and a first transmission belt, where the first motor drives the first transmission belt to transmit through the first transmission shaft. The adjustment of the drying speed is realized by adjusting the rotating speed of the first motor, and when the rotating speed is low, the transmission of the first transmission belt is slow, so that the drying time is prolonged, the solvent residue is further reduced, and vice versa.
In a specific embodiment, each second transmission unit 22 includes a second motor, a second transmission shaft, and a second transmission belt, where the second motor drives the second transmission belt to transmit through the second transmission shaft. The regulation of cooling speed is realized through adjusting the rotational speed of second motor, and second transmission belt conveying slows down when the rotational speed is slow, and cooling time extension is favorable to cooling, and vice versa.
In a specific embodiment, the feed inlet 4 is provided with a first feed valve, the first feed valve is opened, lithium triflate material to be dried enters, and after the feeding is finished, the first feed valve is closed to be isolated from the outside. Specifically, the first feeding valve may be an electric valve such as a pneumatic butterfly valve.
In a specific embodiment, the belt dryer further comprises a feeding bin 6, the feeding port 4 is connected with the drying chamber 1 through the feeding bin 6, lithium triflate materials to be dried enter the feeding bin 6 for transition, feeding is facilitated, and the purpose of continuous production is achieved without affecting the normal operation of the belt dryer.
Specifically, the feeding bin 6 is provided with a second feeding valve 61, the second feeding valve 61 is opened, and lithium triflate material to be dried enters the drying chamber 1 from the feeding bin 6 and falls into the first conveying unit 21 positioned at the uppermost layer. Specifically, the second feed valve 61 may be an electrically operated valve such as a pneumatic butterfly valve. The feeding bin 6 and the vacuum component 3 are communicated and isolated by switching the second feeding valve 61, so that feeding under vacuum condition can be realized.
In a specific embodiment, the discharge port 5 is provided with a first discharge valve, the first discharge valve is opened, the dried lithium triflate material is discharged, and after the discharge is finished, the first discharge valve is closed. Specifically, the first discharging valve can be an electric valve such as a pneumatic butterfly valve.
In a specific embodiment, the belt dryer further comprises a discharge bin 7, the drying chamber 1 is connected with the discharge bin 7 through the discharge port 5, and the dried lithium triflate material enters the discharge bin 7 for transition, so that the discharge is convenient, and the purpose of continuous production is realized without affecting the normal operation of the belt dryer.
Specifically, the discharging bin 7 is provided with a second discharging valve, the second discharging valve is opened, and the dried lithium triflate material is discharged from the discharging bin 7. Specifically, the second discharging valve can be an electric valve such as a pneumatic butterfly valve. The discharging bin 7 and the vacuum component 3 are communicated and isolated through a second discharging valve, and discharging under the vacuum condition can be realized.
In a specific embodiment, the belt dryer further comprises a purge unit 9, the purge unit 9 being directed towards the discharge opening 5. The purging unit 9 can purge by using inert gas such as nitrogen, and is used for discharging after purging the discharge port 5 before discharging is prepared, and purging by using the purging unit again after discharging is finished, so that material residue and air contact are prevented.
In a specific embodiment, the belt dryer further comprises a blowing unit 9, the blowing unit 9 faces the discharging bin 7, discharging is performed after the blowing unit is adopted to blow the discharging bin 7 before discharging is prepared, and the blowing unit is adopted to blow the discharging after discharging is finished, so that material residues are prevented and the material is prevented from being contacted with air.
In a specific embodiment, the discharge port 5 is directed to the material delivery discharge position of the second transmission unit 22 nearest to the discharge port 5, so as to facilitate the discharge of the material.
In a specific embodiment, the belt dryer further comprises at least one illumination unit 8, each provided on the inner wall of the drying chamber 1, for facilitating the observation of the operation inside the drying chamber 1.
In a specific embodiment, the belt dryer further comprises at least one heating tube 10, each heating tube 10 being provided on the inner wall of the drying chamber 1. Specifically, at least one heating pipe 10 communicates with at least one heating member, which is provided with a heat source for heating the material located on the first conveying unit 21.
The drying chamber 1 is subjected to a negative pressure vacuum environment by the vacuum means 3. During drying, lithium triflate material to be dried enters the first conveying unit 21 positioned at the uppermost layer in the drying chamber 1 from the feed inlet 4, the heating component heats the material positioned on the first conveying unit 21, the heated material falls into the second layer from the first layer through gravity, the cooling component cools the material positioned on the second conveying unit 22, and the cooled material is discharged from the discharge port 5.
In conclusion, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (11)
1. A belt dryer for drying lithium triflate, characterized by comprising a drying chamber (1), a multilayer transport member (2), at least one heating member, at least one cooling member and a vacuum member (3); the drying chamber (1) is provided with a feed inlet (4) and a discharge outlet (5); each transmission component (2), each heating component and each cooling component are arranged in the drying chamber (1);
the multi-layer transmission component (2) comprises at least one layer of first transmission units (21) and at least one layer of second transmission units (22) from top to bottom in sequence; the heating parts are arranged below the first transmission units (21) of each layer; the cooling component is arranged below the second transmission units of each layer;
the vacuum component (3) is in communication with the drying chamber (1).
2. Belt dryer for drying lithium triflate according to claim 1, characterized in that the multilayer transport element (2) comprises, in order from top to bottom, more than two layers of first transport units (21) and more than two layers of second transport units (22).
3. A belt dryer for drying lithium triflate as in claim 1, wherein: the multi-layer transmission component (2) comprises three layers of first transmission units (21) and two layers of second transmission units (22) from top to bottom.
4. A belt dryer for drying lithium triflate according to claim 1 or 2 or 3, characterized in that each first transmission unit (21) comprises a first motor, a first transmission shaft and a first transmission belt, the first motor driving the first transmission belt through the first transmission shaft; each second transmission unit (22) comprises a second motor, a second transmission shaft and a second transmission belt, and the second motor drives the second transmission belt to transmit through the second transmission shaft.
5. A belt dryer for drying lithium triflate according to claim 1 or 2 or 3, characterized in that the feed inlet (4) is provided with a first feed valve;
the belt dryer further comprises a feeding bin (6), and the feeding port (4) is connected with the drying chamber (1) through the feeding bin (6);
the discharge hole (5) is provided with a first discharge valve;
the belt dryer further comprises a discharging bin (7), and the drying chamber (1) is connected with the discharging bin (7) through the discharging hole (5);
the discharge port (5) faces to a material conveying and discharging position of a second conveying unit (22) nearest to the discharge port (5).
6. Belt dryer for drying lithium triflate according to claim 5, characterized in that the feed bin (6) is provided with a second feed valve (61);
and/or the discharging bin (7) is provided with a second discharging valve.
7. A belt dryer for drying lithium triflate according to claim 1 or 2 or 3, characterized in that it further comprises at least one lighting unit (8), each lighting unit being provided on the inner wall of the drying chamber (1).
8. A belt dryer for drying lithium triflate according to claim 1 or 2 or 3, characterized in that it further comprises a purge unit (9), said purge unit (9) being directed towards said outlet (5).
9. Belt dryer for drying lithium triflate according to claim 5, characterized in that it further comprises a purge unit (9), said purge unit (9) being directed towards said discharge bin (7).
10. A belt dryer for drying lithium triflate according to claim 1 or 2 or 3, characterized in that it further comprises at least one heating tube (10), each heating tube (10) being provided on the inner wall of the drying chamber (1).
11. Belt dryer for drying lithium triflate according to claim 10, characterized in that at least one heating tube (10) communicates with at least one heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223602150.9U CN219301238U (en) | 2022-12-29 | 2022-12-29 | Belt dryer for drying lithium triflate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223602150.9U CN219301238U (en) | 2022-12-29 | 2022-12-29 | Belt dryer for drying lithium triflate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219301238U true CN219301238U (en) | 2023-07-04 |
Family
ID=86953533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223602150.9U Active CN219301238U (en) | 2022-12-29 | 2022-12-29 | Belt dryer for drying lithium triflate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219301238U (en) |
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2022
- 2022-12-29 CN CN202223602150.9U patent/CN219301238U/en active Active
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