CN219682696U - Multifunctional drying and crushing device for treating lithium slag - Google Patents
Multifunctional drying and crushing device for treating lithium slag Download PDFInfo
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- CN219682696U CN219682696U CN202321241714.2U CN202321241714U CN219682696U CN 219682696 U CN219682696 U CN 219682696U CN 202321241714 U CN202321241714 U CN 202321241714U CN 219682696 U CN219682696 U CN 219682696U
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- Prior art keywords
- drying
- crushing
- rotating
- plate
- lithium slag
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 82
- 238000001035 drying Methods 0.000 title claims abstract description 70
- 239000002893 slag Substances 0.000 title claims abstract description 67
- 239000007921 spray Substances 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000007664 blowing Methods 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000013049 sediment Substances 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract 1
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 244000309464 bull Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- CNLWCVNCHLKFHK-UHFFFAOYSA-N aluminum;lithium;dioxido(oxo)silane Chemical compound [Li+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O CNLWCVNCHLKFHK-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Inorganic materials [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910052642 spodumene Inorganic materials 0.000 description 1
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical compound Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a multifunctional drying and crushing device for treating lithium slag, which relates to the technical field of production and processing of lithium slag and comprises the following components: the multifunctional drying and crushing device for treating lithium slag comprises a device outer end shell, wherein a rotating mechanism is arranged at the outer end of the device outer end shell, a crushing mechanism is arranged at the lower end of the rotating mechanism, and a drying mechanism is arranged at the lower end of the crushing mechanism; the rotating mechanism comprises: the angle rotating spray rod is arranged in the outer end shell of the device, the connecting concave block is arranged in the rotating plate, and the upper end of the connecting concave block is provided with a spray air bag; the drying mechanism includes: install in the stoving gas blowing device of the broken pole lower extreme of spool, circulating fan is installed to the upper end of pivot, and circulating fan's internally mounted has the fan blade, and this a multi-functional stoving breaker for handling lithium sediment has stoving and broken as an organic wholely, prevents that lithium sediment from sinking the end and agglomerating, prevents the advantage of device inner wall absorption lithium sediment.
Description
Technical Field
The utility model relates to the technical field of production and processing of lithium slag, in particular to a multifunctional drying and crushing device for treating lithium slag.
Background
The lithium slag is waste slag generated in the process of producing lithium carbonate or lithium hydroxide by using a sulfuric acid method. The spodumene is changed from alpha type to beta type after being calcined at a high temperature of 1050-1200 ℃, and then is changed into soluble lithium sulfate after being acidified and roasted. The acidified roasting ore is leached, filtered and washed, the leaching solution is used for subsequent production of lithium carbonate or lithium hydroxide, and filter residues are lithium residues.
The existing references are: CN212081973U, which discloses a lithium slag efficient drying device, comprises: the drying cylinder is provided with a feed inlet and a discharge outlet, a rotary column is coaxially arranged in the drying cylinder in a rotating mode, a plurality of drying columns are arranged on the outer side of the rotary column along the spiral direction, and one end, far away from the rotary column, of each drying column is closed and connected with one side of a spiral scraping sheet; an air inlet channel is arranged in the rotary column along the axial direction, an air passage communicated with the air inlet channel is arranged in the drying column, and a plurality of air outlet holes communicated with the air passage are also arranged on the side wall of the drying column; the utility model has the beneficial effects of effectively scattering lithium slag, avoiding lithium slag agglomeration and effectively improving the drying efficiency of the lithium slag.
The efficient lithium slag drying device solves the problems that the traditional lithium slag drying device is easy to agglomerate and low in lithium slag drying efficiency in the process of drying lithium slag, but the traditional multifunctional drying and crushing device for processing lithium slag is low in efficiency and can only crush lithium slag near a crushing structure when crushing the lithium slag due to the fact that drying and crushing are needed to be performed respectively in use, and the lithium slag is easy to agglomerate again when sinking to the bottom of the device.
Disclosure of Invention
The utility model aims to overcome the problems that the existing multifunctional drying and crushing device for treating lithium slag needs to be dried and crushed respectively when in use, so that the efficiency is low, lithium slag near a crushing structure can only be crushed when the lithium slag is crushed, lithium slag is easy to agglomerate again when sinking to the bottom of the device, and in the drying process, some lithium slag can be adsorbed on the shell wall of the device, so that residual problems still exist on the inner wall after the lithium slag is dried.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a multi-functional stoving breaker for handling lithium sediment includes:
the multifunctional drying and crushing device for treating lithium slag comprises a device outer end shell, wherein a rotating mechanism is arranged at the outer end of the device outer end shell, a crushing mechanism is arranged at the lower end of the rotating mechanism, and a drying mechanism is arranged at the lower end of the crushing mechanism;
the rotating mechanism comprises: the angle rotating spray rod is arranged in the outer end shell of the device, and a rotating plate is arranged at the upper end of the angle rotating spray rod; a connecting concave block is arranged in the rotating plate, and an air spraying bag is arranged at the upper end of the connecting concave block; a spray head is arranged above the spray air bag;
the crushing mechanism includes: the reel crushing rod is arranged at the lower end of the angle rotation spray rod, and a rotator is arranged above the reel crushing rod; a rotating rod is arranged above the rotator, and fan blades are fixed above the rotating rod;
the drying mechanism includes: the drying and blowing device is arranged at the lower end of the reel crushing rod, and a rotating shaft is arranged at the lower end of the drying and blowing device; the upper end of the rotating shaft is provided with a circulating fan, and the inside of the circulating fan is provided with a blowing blade.
Preferably, the device outer end housing comprises:
the upper end of the outer end shell of the device is provided with a shell, and the upper end of the shell is fixedly provided with a feed inlet; an operation plate is fixed on the right side of the shell; a baffle plate is fixed in the shell, and a material leakage opening is arranged at the right end of the baffle plate; the lower extreme of weeping mouth installs the pipeline, and the export is installed to the lower extreme of pipeline.
Preferably, the angle-turning spray bar includes:
the upper end of angle rotation spray lance is installed and is worn the picture peg, wear the top of picture peg and install the mounting panel, the top of mounting panel is fixed with the fixed plate, and the upper end of fixed plate installs the swivel plate.
Preferably, the reel crushing rod comprises:
a structural plate is arranged above the reel crushing rod, and a motor is arranged at the rear end of the structural plate; the front end of the structural plate is provided with a supporting plate, and the upper end of the supporting plate is provided with a rotator.
Preferably, the drying and blowing device includes:
the upper end of the drying and blowing device is internally provided with a frame, and the inside of the frame is provided with a heating box; a radiator is fixed on the right side of the heating box, and an electric power device is arranged at the right end of the radiator; a backing plate is fixed at the upper end of the electric power device; the upper end of the backing plate is fixed with a rotating shaft.
Preferably, the vertical installation positions of the angle rotation spray rod and the reel crushing rod are on the same horizontal line, and the drying and blowing device is fixed below a partition plate of the outer end shell of the device.
Preferably, the through hole is installed to the upper end of baffle, the baffle is the slope structure, and inclination is 60.
Preferably, the upper end of the frame is provided with a heat radiation hole, and the outer end of the circulating fan is made of metal.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the multifunctional drying and crushing device for treating lithium slag, the partition board is arranged at the lower end of the outer end shell of the device, on one hand, the partition board distinguishes an upper structure from a lower structure, on the other hand, the partition board is inclined to 60 degrees, so that dried lithium slag can be conveniently pushed to a material leakage port, and the whole device is convenient to use;
2. according to the multifunctional drying and crushing device for treating lithium slag, the rotating plate is arranged above the angle rotating spray boom, the rotating plate is used for carrying out rotary adjustment on the upper end structure, so that the lithium slag adsorbed on the inner wall can be conveniently sprayed down in an all-round manner, the front end of the rotating plate is provided with the spraying air bag and the spray head, the spraying air bag and the spray head prevent some lithium slag from being adsorbed on the shell wall of the device, and the problem that residues exist on the inner wall after the lithium slag is dried is solved;
3. the multifunctional drying and crushing device for treating the lithium slag is characterized in that the rotating rod is arranged above the scroll crushing rod, the rotating rod is combined with the fan blades to crush the lithium slag, the structure is arranged into an upper layer and a lower layer, the lithium slag is convenient to crush for a plurality of times, the lithium slag sinking at the bottom is convenient to roll up to crush, and the dried lithium slag is prevented from caking at the bottom of the device;
4. this a multi-functional stoving breaker for handling lithium sediment installs the heating cabinet above the stoving blowing device, and the heating cabinet makes upper end circulating fan blow out hot-air, dries the inside lithium sediment of device, and this device installs in the device bottom, is convenient for blow the lithium sediment of bottom and break up when drying the lithium sediment, prevents that lithium sediment from agglomerating inside unable stoving.
Drawings
Fig. 1 is a schematic overall structure of a multifunctional drying and crushing device for treating lithium slag according to an embodiment of the present utility model;
FIG. 2 is a schematic view of an outer end shell of a multifunctional drying and crushing device for treating lithium slag according to an embodiment of the present utility model;
FIG. 3 is a schematic view of an angle rotary spray boom of a multifunctional drying and crushing device for treating lithium slag according to an embodiment of the utility model;
fig. 4 is a schematic view showing a structure of a reel crushing rod of a multifunctional drying and crushing device for treating lithium slag according to an embodiment of the present utility model;
FIG. 5 is a schematic view showing a structure of a drying and blowing device of a multifunctional drying and crushing device for treating lithium slag according to an embodiment of the present utility model;
1. an outer end shell of the device; 101. a housing; 102. a feed inlet; 103. an operation panel; 104. a partition plate; 105. a material leakage port; 106. a pipe; 107. an outlet; 2. rotating the spray rod at an angle; 201. inserting plates; 202. a mounting plate; 203. a fixing plate; 204. a rotating plate; 205. connecting concave blocks; 206. spraying an air bag; 207. a spray head; 3. a reel breaker bar; 301. a structural panel; 302. a motor; 303. a support plate; 304. a rotator; 305. a rotating rod; 306. a fan blade; 4. a drying and blowing device; 401. a frame; 402. a heating box; 403. a heat sink; 404. an electric power device; 405. a backing plate; 406. a rotating shaft; 407. a circulating fan; 408. blowing fan blades.
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 making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
referring to fig. 1 to 5, in this embodiment, a multifunctional drying and crushing apparatus for treating lithium slag includes: the multifunctional drying and crushing device for treating lithium slag comprises a device outer end shell 1, wherein a rotating mechanism is arranged at the outer end of the device outer end shell 1, a crushing mechanism is arranged at the lower end of the rotating mechanism, and a drying mechanism is arranged at the lower end of the crushing mechanism; the stoving mechanism includes: the drying and blowing device 4 is arranged at the lower end of the reel crushing rod 3, the drying and blowing device 4 is arranged at the lower end of the drying and blowing device 4, and the rotating shaft 406 is arranged at the lower end of the drying and blowing device 4; the upper end of the rotating shaft 406 is provided with a circulating fan 407, and the inside of the circulating fan 407 is provided with a blowing blade 408.
Specifically, the device outer end shell 1 is convenient for input and output of lithium slag and is convenient for the use of the whole device, and the drying and blowing device 4 is convenient for drying the lithium slag in the device and blowing up the lithium slag with the agglomerated bottom.
The upper end of the device outer end shell 1 is provided with a shell 101, and the upper end of the shell 101 is fixedly provided with a feed inlet 102; an operation panel 103 is fixed to the right side of the casing 101; a baffle plate 104 is fixed in the shell 101, and a material leakage opening 105 is arranged at the right end of the baffle plate 104; a pipe 106 is installed at the lower end of the discharge port 105, and an outlet 107 is installed at the lower end of the pipe 106.
The installation through shell 101 protects inside device, and feed inlet 102 is convenient for input the lithium sediment inside the device, and operation panel 103 is convenient for start the device, and baffle 104 divides the device inside region, and leak out the lithium sediment after the material mouth 105 is convenient for spill inside stoving, and pipeline 106 is convenient for carry the lithium sediment, and export 107 is discharged the lithium sediment.
A frame 401 is internally installed at the upper end of the drying and blowing device 4, and a heating box 402 is internally installed in the frame 401; a radiator 403 is fixed on the right side of the heating box 402, and an electric power device 404 is arranged at the right end of the radiator 403; a backing plate 405 is fixed at the upper end of the electric power device 404; a rotation shaft 406 is fixed to the upper end of the pad 405.
Install internal device through frame 401, heating cabinet 402 is convenient for heat upper end circulating fan 407, and radiator 403 is convenient for the heat dissipation of device, and electric power ware 404 provides power for the device, and backing plate 405 is convenient for install pivot 406, and pivot 406 is convenient for top circulating fan 407 rotate, and circulating fan 407 is convenient for dry inside lithium sediment, and blowing blade 408 is convenient for rotate circulating fan 407.
Embodiment two:
the rotating mechanism comprises: an angle rotating spray rod 2 arranged in the outer end shell 1 of the device, wherein the angle rotating spray rod 2 is arranged at the upper end of the angle rotating spray rod 2; a connecting concave block 205 is arranged in the rotating plate 204, and an air jet bag 206 is arranged at the upper end of the connecting concave block 205; a spray head 207 is arranged above the air jet bag 206; the crushing mechanism includes: the reel crushing rod 3 is arranged at the lower end of the angle rotation spray rod 2, the reel crushing rod 3 and the rotator 304 is arranged above the reel crushing rod 3; a rotating rod 305 is installed above the rotator 304, and a fan blade 306 is fixed above the rotating rod 305.
Specifically, the angle rotation spray lance 2 is convenient for blow the lithium slag that adsorbs at the inner wall, is convenient for follow-up use, and the broken pole 3 of spool is convenient for carry out broken with inside lithium slag.
The upper end of the angle rotation spray boom 2 is provided with a penetrating plate 201, a mounting plate 202 is arranged above the penetrating plate 201, a fixing plate 203 is fixed above the mounting plate 202, and a rotating plate 204 is arranged at the upper end of the fixing plate 203.
Through setting up wear picture peg 201 and fix upper end device, mounting panel 202 is convenient for install front end device, and fixed plate 203 fixes upper end change board 204, and change board 204 is convenient for front end device's use, and connection concave block 205 is convenient for rotate front end device, and jet capsule 206 inside stores gas, and shower nozzle 207 is convenient for spout the lithium sediment.
A structural plate 301 is arranged above the reel crushing rod 3, and a motor 302 is arranged at the rear end of the structural plate 301; a support plate 303 is installed at the front end of the structural plate 301, and a rotator 304 is installed at the upper end of the support plate 303.
Through fixing the upper end device to the installation of structural slab 301, the motor 302 is convenient for the use of device, and backup pad 303 is installed the front end device, and the use of front end bull stick 305 will be convenient for to the rotator 304, and bull stick 305 combines the lithium sediment that breaks the device inside with flabellum 306.
Working principle: firstly, pouring lithium slag into a device through a feed inlet 102 at the upper end of the device, opening an operation plate 103 to open the device, driving an upper structure plate 301 to use by an internal motor 302, connecting the structure plate 301 with a front end supporting plate 303, rotating a rotator 304, installing a rotating rod 305 above the rotator 304, driving an upper fan blade 306 to rotate by the rotating rod 305, crushing the lithium slag in the device, simultaneously starting an upper heating box 402 by a lower electric power device 404, heating the upper structure by the heating box 402, dispersing heat when the internal device is started by a right radiator 403, circulating hot air in the device after starting a circulating fan 407, drying the internal lithium slag, and blocking the deposited lithium slag by a baffle 104 arranged at the upper end of the circulating fan 407, and agglomerating the bottom when drying the lithium slag by the circulating fan 407; when the lithium slag is broken, some lithium slag can be adsorbed on the inner wall of the device, the upper end angle is turned to open the spray boom 2, the rotary plate 204 drives the front end connecting concave block 205 to rotate, gas is stored through the spray air bag 206, the gas is sprayed out through the spray nozzle 207, and the lithium slag on the inner wall of the device is blown off.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. The multifunctional drying and crushing device for treating the lithium slag is characterized by comprising an outer end shell (1), wherein a rotating mechanism is arranged at the outer end of the outer end shell (1), a crushing mechanism is arranged at the lower end of the rotating mechanism, and a drying mechanism is arranged at the lower end of the crushing mechanism;
the rotating mechanism comprises: the angle rotating spray rod (2) is arranged in the outer end shell (1) of the device, the angle rotating spray rod (2) is arranged at the upper end of the angle rotating spray rod (2) and a rotating plate (204) is arranged at the upper end of the angle rotating spray rod; a connecting concave block (205) is arranged in the rotating plate (204), and an air spraying bag (206) is arranged at the upper end of the connecting concave block (205); a spray head (207) is arranged above the air injection bag (206);
the crushing mechanism includes: the reel crushing rod (3) is arranged at the lower end of the angle rotation spray rod (2), and a rotator (304) is arranged above the reel crushing rod (3); a rotating rod (305) is arranged above the rotator (304), and fan blades (306) are fixed above the rotating rod (305);
the drying mechanism includes: the drying and blowing device (4) is arranged at the lower end of the reel crushing rod (3), the drying and blowing device (4), and a rotating shaft (406) is arranged at the lower end of the drying and blowing device (4); the upper end of the rotating shaft (406) is provided with a circulating fan (407), and the inside of the circulating fan (407) is provided with a blowing blade (408).
2. The multifunctional drying and crushing device for treating lithium slag according to claim 1, wherein:
the device outer end housing (1) comprises: the upper end of the outer end shell (1) of the device is provided with a shell (101), and the upper end of the shell (101) is fixed with a feed inlet (102); an operation plate (103) is fixed on the right side of the shell (101); a partition board (104) is fixed in the shell (101), and a material leakage opening (105) is arranged at the right end of the partition board (104); the lower end of the material leakage opening (105) is provided with a pipeline (106), and the lower end of the pipeline (106) is provided with an outlet (107).
3. The multifunctional drying and crushing device for treating lithium slag according to claim 1, wherein:
the angle rotation spray boom (2) further comprises: the upper end of angle rotation spray lance (2) is installed and is worn picture peg (201), install mounting panel (202) in the top of interlude board (201), the top of mounting panel (202) is fixed with fixed plate (203), and rotating plate (204) are installed to the upper end of fixed plate (203).
4. The multifunctional drying and crushing device for treating lithium slag according to claim 1, wherein:
the reel breaker bar (3) further comprises: a structural plate (301) is arranged above the reel crushing rod (3), and a motor (302) is arranged at the rear end of the structural plate (301); a supporting plate (303) is mounted at the front end of the structural plate (301), and a rotator (304) is mounted at the upper end of the supporting plate (303).
5. The multifunctional drying and crushing device for treating lithium slag according to claim 1, wherein:
the drying and blowing device (4) further comprises: a frame (401) is arranged in the upper end of the drying and blowing device (4), and a heating box (402) is arranged in the frame (401); a radiator (403) is fixed on the right side of the heating box (402), and an electric power device (404) is arranged at the right end of the radiator (403); a backing plate (405) is fixed at the upper end of the electric power device (404); a rotating shaft (406) is fixed at the upper end of the backing plate (405).
6. The multifunctional drying and crushing device for treating lithium slag according to claim 1, wherein:
the vertical installation positions of the angle rotation spray rod (2) and the reel crushing rod (3) are on the same horizontal line, and the drying and blowing device (4) is fixed below a partition plate (104) of the outer end shell (1) of the device.
7. The multifunctional drying and crushing device for treating lithium slag according to claim 2, wherein:
the through hole is installed to the upper end of baffle (104), baffle (104) are the slope structure, and inclination is 60.
8. The multifunctional drying and crushing device for treating lithium slag according to claim 5, wherein:
the upper end of the frame (401) is provided with a heat radiation hole, and the outer end of the circulating fan (407) is made of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321241714.2U CN219682696U (en) | 2023-05-22 | 2023-05-22 | Multifunctional drying and crushing device for treating lithium slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321241714.2U CN219682696U (en) | 2023-05-22 | 2023-05-22 | Multifunctional drying and crushing device for treating lithium slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219682696U true CN219682696U (en) | 2023-09-15 |
Family
ID=87943779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321241714.2U Active CN219682696U (en) | 2023-05-22 | 2023-05-22 | Multifunctional drying and crushing device for treating lithium slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219682696U (en) |
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2023
- 2023-05-22 CN CN202321241714.2U patent/CN219682696U/en active Active
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