CN220048521U - Lithium battery coating slurry sieving device - Google Patents
Lithium battery coating slurry sieving device Download PDFInfo
- Publication number
- CN220048521U CN220048521U CN202321455813.0U CN202321455813U CN220048521U CN 220048521 U CN220048521 U CN 220048521U CN 202321455813 U CN202321455813 U CN 202321455813U CN 220048521 U CN220048521 U CN 220048521U
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- tank
- sieving
- demagnetizing
- lithium battery
- unit
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- 238000007873 sieving Methods 0.000 title claims abstract description 47
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 19
- 239000006255 coating slurry Substances 0.000 title abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 37
- 239000011248 coating agent Substances 0.000 claims abstract description 36
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims description 54
- 239000002893 slag Substances 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 16
- 238000007790 scraping Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002002 slurry Substances 0.000 abstract description 32
- 238000012216 screening Methods 0.000 abstract description 12
- 239000002245 particle Substances 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 5
- 230000008021 deposition Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 230000035515 penetration Effects 0.000 abstract description 4
- 150000002739 metals Chemical class 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model discloses a lithium battery coating slurry sieving device, which comprises a transfer tank, a filtering unit and a demagnetizing unit which are sequentially communicated, wherein the demagnetizing unit is connected with a coating machine; the filtering unit comprises a sieving tank and a filter screen arranged in the sieving tank, and the demagnetizing unit comprises a demagnetizing tank and a magnetic rod arranged in the demagnetizing tank. The utility model filters the slurry once through the filter screen, and adsorbs all metals and magnetic positions in the slurry through the magnetic rod, thereby achieving secondary screening; the slurry subjected to multiple screening reaches a coating machine through a pipeline to carry out coating operation, so that particles formed by easy deposition of the slurry are obviously reduced, the coating effect is improved, and the defects of particle scratches, penetration and the like of a pole piece formed by coating are avoided.
Description
Technical Field
The utility model relates to the technical field of lithium battery production, in particular to a lithium battery coating slurry sieving device.
Background
In the production process of the lithium ion battery, slurry coating is required to be carried out on the positive electrode plate and the negative electrode plate, in the positive electrode coating process of the lithium ion battery, slurry is easy to deposit in a slurry conveying pipeline and particles are formed to be attached to the inner wall of the pipeline, the particles formed by deposition can flow into a coating machine along with the slurry, and then the coating effect is affected, so that the defects of particle scratches, penetration and the like of the pole plate formed by coating are caused.
Disclosure of Invention
Aiming at the defects in the background technology, the utility model provides a lithium battery coating slurry sieving device, which solves the problem that particles formed by slurry deposition in the prior art can influence the coating effect.
The technical scheme of the utility model is realized as follows:
the lithium battery coating slurry sieving device comprises a transfer tank, a filtering unit and a demagnetizing unit which are sequentially communicated, wherein the demagnetizing unit is connected with a coating machine; the filtering unit comprises a sieving tank and a filter screen arranged in the sieving tank, and the demagnetizing unit comprises a demagnetizing tank and a magnetic rod arranged in the demagnetizing tank.
Further, the filter screen is of a U-shaped structure, and an annular support matched with the upper end of the sieving tank is arranged at the upper end of the filter screen; and the filter screen is in clearance fit with the sieving tank.
Further, the sieving tank is provided with a slag scraping piston which can slide up and down, and the slag scraping piston is attached to the filter screen; the slag scraping piston is connected with a piston connecting rod.
Further, a top cover is arranged at the upper end of the sieving tank, a first feed inlet is formed in the top cover, and the first feed inlet is connected with the transfer tank through a pipeline and a first diaphragm pump; the lower end of the filtering unit is provided with a first discharge hole; the filtering unit is communicated with the feeding end of the demagnetizing tank through a first discharging hole.
Further, the lower end of the demagnetizing tank is provided with a second feeding hole, the upper end of the demagnetizing tank is provided with a second discharging hole, and the magnetic rod is vertically arranged between the second feeding hole and the second discharging hole.
Further, one side of the lower end of the demagnetizing pot, which is far away from the second feeding hole, is provided with a slag discharging hole.
Further, a cooling unit is arranged between the demagnetizing unit and the coating machine.
Further, the cooling unit comprises a cooling tank and a liquid cooling pipe arranged in the cooling tank, and a cooling cavity is formed between the outer side of the liquid cooling pipe and the cooling tank.
Further, a third feeding port and a third discharging port which are communicated with the cooling cavity are arranged on the cooling tank, and the third feeding port and the third discharging port are respectively connected with the demagnetizing unit and the coating machine; the cooling tank is also provided with a water inlet and a water outlet which are communicated with the liquid cooling pipe.
Further, a third feeding port and a third discharging port which are communicated with the cooling cavity are arranged on the cooling tank, and the third feeding port and the third discharging port are respectively connected with the demagnetizing unit and the coating machine; the cooling tank is also provided with a water inlet and a water outlet which are communicated with the liquid cooling pipe.
The utility model has the beneficial effects that:
1. in the utility model, the slurry in the transfer tank is injected into the inner cavity of the sieving tank, the slurry is filtered once through the filter screen, the filtered slurry enters the inner cavity of the demagnetizing tank, and the magnetic rod in the inner cavity of the demagnetizing tank is completely wrapped in the process that the slurry moves upwards along the inner cavity of the demagnetizing tank under the power of the first diaphragm pump, so that the metal and the magnetic position in the slurry are adsorbed by the magnetic rod completely, and the secondary sieving is achieved; the slurry subjected to multiple screening reaches a coating machine through a pipeline to carry out coating operation, so that particles formed by easy deposition of the slurry are obviously reduced, the coating effect is improved, and the defects of particle scratches, penetration and the like of a pole piece formed by coating are avoided.
2. The slag scraping piston is slidably arranged in the inner cavity of the sieving tank, and the piston connecting rod is connected to the middle position of one end of the slag scraping piston, which faces the top cover, when the top cover is opened after the work is finished, the slag scraping piston can effectively clean the inner side of the filter screen by pulling the piston connecting rod, so that the practicability of the utility model is effectively improved;
3. the cooling unit is arranged between the demagnetizing unit and the coating machine, so that the filtered slurry is rapidly cooled, and the working efficiency is effectively improved;
4. the utility model has simple structure and convenient operation, effectively realizes the efficient screening of impurities before the lithium battery coating slurry enters a coating machine, and is easy to popularize.
Drawings
In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a filter unit according to the present utility model;
FIG. 3 is a schematic diagram of a demagnetizing unit according to the present utility model;
fig. 4 is a schematic diagram of the cooling unit structure of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only 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 any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 4, the lithium battery coating slurry sieving device according to embodiment 1 of the present utility model includes a filtering unit 1, a pipeline 2, a transfer tank 3, a demagnetizing unit 4, a first diaphragm pump 6, an electric cabinet 7, and a second diaphragm pump 8. Referring to fig. 1-2, a filter unit 1 is placed on a mounting frame, and the filter unit 1 is communicated with a transfer tank 3 through a pipe 2. The filtering unit 1 comprises a sieving tank 11, a filter screen 12, a top cover 13, a first feed inlet 14, a piston connecting rod 15, a slag scraping piston 16 and a first discharge outlet 17. The whole screening tank 11 is of a U-shaped tubular structure, the top cover 13 is positioned at the upper end of the screening tank 11 and is fixedly connected with the screening tank 11 through a vacuum clamp, the first feed inlet 14 is formed in the middle of the upper end of the top cover 13 and is communicated with the inner cavity of the screening tank 11, one end, far away from the top cover 13, of the first feed inlet 14 is communicated with the pipeline 2, and the first discharge outlet 17 is fixedly connected at the lower end of the screening tank 11 in an L-shaped mode. The filter screen 12 is of a U-shaped cylindrical structure matched with the sieving tank 11, and an annular support is arranged at the upper end of the filter screen 12 and can be placed at the upper end of the sieving tank 11. The upper end of the sieving tank 11 may be provided with an annular groove matching with the annular support, so that the filter screen 12 is installed in the sieving tank 11, and meanwhile, the filter screen 12 is in clearance fit with the sieving tank 11, that is, a certain clearance exists between the outer wall and the bottom of the filter screen 12 and the inner wall of the sieving tank 11.
Referring to fig. 1, a first diaphragm pump 6 is located between a filter unit 1 and a transfer tank 3, the left end of the first diaphragm pump 6 is communicated with the transfer tank 3 through a pipe 2, and the right end is communicated with a sieving tank 11 through the pipe 2.
In this embodiment, the slurry in the transfer tank 3 is injected into the inner cavity of the sieving tank 11 along the pipeline 2 through the first feed port 14 by starting the first diaphragm pump 6, and is filtered by the filter screen 12, so that the large particle impurities are sieved, the filtered slurry is discharged through the first discharge port 17, and the quality of the slurry is effectively improved in the next process.
Further, the slag scraping piston 16 is slidably connected to the inner cavity of the sieving tank 11, the outer side of the slag scraping piston 16 is in contact with the inner side of the filter screen 12, the piston connecting rod 15 is fixedly connected to the middle position of one end of the slag scraping piston 16, which faces the top cover 13, after the work is completed, a worker manually moves the piston connecting rod 15 by opening the top cover 13, so that the slag scraping piston 16 cleans the inner wall of the filter screen 12, and the practicability of the utility model is effectively improved.
Referring to fig. 1 and 3, the demagnetizing unit 4 is located at one side of the filtering unit 1 far away from the transfer tank 3, and is mounted on the mounting frame in parallel with the filtering unit, the demagnetizing unit 4 includes a demagnetizing tank 41, a second feeding port 42, a slag discharging port 43, a magnetic rod 44 and a second discharging port 45, and the demagnetizing tank 41 is vertically mounted on the mounting frame in a cylindrical structure as a whole. The second discharge port 45 is arranged on one side of the upper end of the demagnetizing pot 41, one end, away from the demagnetizing pot 41, of the second discharge port 45 is communicated with the pipeline 2, the second feed port 42 is arranged at the lower end of the demagnetizing pot 41, and the demagnetizing pot 41 is communicated with the sieving pot 11 through the second feed port 42. The magnetic rod 44 is vertically arranged in the demagnetizing pot 41, and the magnetic rod 44 is movably arranged in the inner cavity of the demagnetizing pot 41.
In this embodiment, the filtered slurry enters the inner cavity of the demagnetizing tank 41 through the first discharge port 17 and the second feed port 42, and is moved upwards along the demagnetizing tank 41 under the driving of the first diaphragm pump 6, and is discharged from the second discharge port 45, and in the process of moving upwards, the slurry completely wraps the magnetic rod 44, and the magnetic rod 44 fully adsorbs metals and magnetic substances contained in the slurry after primary filtration, so that secondary filtration is achieved, efficient screening of the coating slurry is realized, defects such as particle scratches and penetration of produced pole pieces are effectively avoided, and the practicability of the utility model is greatly improved.
Further, after the work is completed, the worker withdraws the magnetic rod 44 by opening the upper end of the magnetic removal tank 41, thereby cleaning the impurities adsorbed on the surface thereof, effectively improving the practicability of the present utility model.
The slag discharging port 43 is arranged on one side, far away from the second feed port 42, of the lower end of the demagnetizing pot 41, the slag discharging port 43 is in a closed state in a normal state, and after the work is completed, workers can effectively discharge impurities in the inner cavity of the sieving pot 11 by opening the slag discharging port 43.
Embodiment 2 differs from embodiment 1 in that referring to fig. 1, 4, a cooling unit 5 and an electric cabinet 7 are further included. The cooling unit 5 is installed and is located filtering unit 1, remove the rear end of magnetic unit 4 on the mounting bracket, thereby cooling unit 5 is connected with electric cabinet 7 through the wire, thereby adjust cooling unit 5's temperature through operating electric cabinet 7, cooling unit 5 includes cooling tank 51, delivery port 52, water inlet 53, liquid cooling pipe 54, third feed inlet 55, third discharge gate 56, cooling tank 51 wholly is "rectangle" cavity structure, liquid cooling pipe 54 coils the inner chamber at cooling tank 51, delivery port 52 has been seted up to upper end one side of cooling tank 51, delivery port 52 extends to cooling tank 51's inner chamber and liquid cooling pipe 54 and is linked together, water inlet 53 has been seted up to cooling tank 51's lower extreme one side, water inlet 53 extends to cooling tank 51's inner chamber and liquid cooling pipe 54 are linked together.
The third feed inlet 55 is arranged at one end of the cooling tank 51 and is communicated with the second discharge outlet 45 through a pipeline 2, and the third discharge outlet 56 is arranged at the outer side of the cooling tank 51 and is positioned at the same side with the third feed inlet 55 and is communicated with the coating machine through the pipeline 2.
In this embodiment, the slurry after secondary filtration is discharged from the second discharge port 45 and enters the inner cavity of the cooling tank 51 through the pipeline 2, and meanwhile, the liquid cooling pipe 54 is operated to cool the slurry in the cooling tank 51 at a high speed through the electric cabinet 7, so that a usable state is quickly achieved, and the working efficiency of the utility model is effectively improved.
Referring to fig. 1, the second diaphragm pump 8 is fixedly installed between the cooling unit 5 and the coater, the left end of the second diaphragm pump 8 is communicated with the third discharge port 56 through the pipeline 2, and the right end is communicated with the coater, so that power is effectively provided for the cooled slurry, and the practicability of the utility model is greatly improved.
The working principle of the utility model is as follows: the worker injects the slurry inside the transfer tank 3 into the inner cavity of the sieving tank 11 through the pipe 2 by starting the first diaphragm pump 6, and filters it once through the filter screen 12. The filtered slurry enters the inner cavity of the demagnetizing pot 41 from the first discharge port 17 through the second feed port 42. Under the power of the first diaphragm pump 6, the slurry moves upwards along the inner cavity of the demagnetizing pot 41 until being discharged from the second discharge hole 45, the magnetic rod 44 in the inner cavity of the demagnetizing pot 41 is completely wrapped in the slurry moving process, the magnetic rod 44 fully adsorbs metals and magnetic positions in the slurry, so that secondary screening is achieved, the slurry subjected to multiple screening enters the cooling unit 5 for rapid cooling, and the cooled slurry reaches the coating machine through a pipeline for coating.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. The utility model provides a lithium cell coating thick liquids sieving mechanism which characterized in that: comprises a transfer tank (3), a filtering unit (1) and a demagnetizing unit (4) which are sequentially communicated, wherein the demagnetizing unit (4) is connected with a coating machine; the filtering unit (1) comprises a sieving tank (11) and a filter screen (12) arranged in the sieving tank (11), and the demagnetizing unit (4) comprises a demagnetizing tank (41) and a magnetic rod (44) arranged in the demagnetizing tank (41).
2. The lithium battery coating paste sieving device according to claim 1, wherein: the filter screen (12) is of a U-shaped structure, and an annular support matched with the upper end of the sieving tank (11) is arranged at the upper end of the filter screen (12); and the filter screen (12) is in clearance fit with the sieving tank (11).
3. The lithium battery coating paste sieving device according to claim 2, wherein: a slag scraping piston (16) capable of sliding up and down is arranged in the sieving tank (11), and the slag scraping piston (16) is attached to the filter screen (12); the slag scraping piston (16) is connected with a piston connecting rod (15).
4. A lithium battery coating paste sieving apparatus according to claim 2 or 3, wherein: the upper end of the sieving tank (11) is provided with a top cover (13), a first feeding port (14) is formed in the top cover (13), and the first feeding port (14) is connected with the transfer tank (3) through a pipeline (2) and a first diaphragm pump (6); the lower end of the filtering unit (1) is provided with a first discharge hole (17); the filtering unit (1) is communicated with the feeding end of the demagnetizing tank (41) through a first discharging hole (17).
5. The lithium battery coating paste sieving device according to any one of claims 1 to 3, wherein: the lower extreme of demagnetizing pot (41) is equipped with second feed inlet (42), and the upper end is equipped with second discharge gate (45), and bar magnet (44) vertical setting is between second feed inlet (42) and second discharge gate (45).
6. The lithium battery coating paste sieving apparatus according to claim 5, wherein: and a slag discharge port (43) is arranged at one side of the lower end of the demagnetizing pot (41) far away from the second feed port (42).
7. The lithium battery coating paste sieving device according to any one of claims 1 to 3 or 6, wherein: a cooling unit (5) is arranged between the demagnetizing unit (4) and the coating machine.
8. The lithium battery coating paste sieving apparatus according to claim 7, wherein: the cooling unit (5) comprises a cooling tank (51) and a liquid cooling pipe (54) arranged in the cooling tank (51), and a cooling cavity is formed between the outer side of the liquid cooling pipe (54) and the cooling tank (51).
9. The lithium battery coating paste sieving apparatus according to claim 8, wherein: a third feeding port (55) and a third discharging port (56) which are communicated with the cooling cavity are arranged on the cooling tank (51), and the third feeding port (55) and the third discharging port (56) are respectively connected with the demagnetizing unit (4) and the coating machine; the cooling tank (51) is also provided with a water inlet (53) and a water outlet (52) which are communicated with the liquid cooling pipe (54).
10. The lithium battery coating paste sieving apparatus according to claim 9, wherein: the third discharge port (56) is connected with the coating machine through a pipeline (2) and a second diaphragm pump (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321455813.0U CN220048521U (en) | 2023-06-08 | 2023-06-08 | Lithium battery coating slurry sieving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321455813.0U CN220048521U (en) | 2023-06-08 | 2023-06-08 | Lithium battery coating slurry sieving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220048521U true CN220048521U (en) | 2023-11-21 |
Family
ID=88763444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321455813.0U Active CN220048521U (en) | 2023-06-08 | 2023-06-08 | Lithium battery coating slurry sieving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220048521U (en) |
-
2023
- 2023-06-08 CN CN202321455813.0U patent/CN220048521U/en active Active
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