CN220425558U - Automatic slag discharging device of lithium iron phosphate jet mill - Google Patents
Automatic slag discharging device of lithium iron phosphate jet mill Download PDFInfo
- Publication number
- CN220425558U CN220425558U CN202321929145.0U CN202321929145U CN220425558U CN 220425558 U CN220425558 U CN 220425558U CN 202321929145 U CN202321929145 U CN 202321929145U CN 220425558 U CN220425558 U CN 220425558U
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- China
- Prior art keywords
- slag
- jet mill
- iron phosphate
- lithium iron
- slag discharging
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- 239000002893 slag Substances 0.000 title claims abstract description 118
- 238000007599 discharging Methods 0.000 title claims abstract description 74
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 38
- 238000003860 storage Methods 0.000 claims description 11
- 239000013049 sediment Substances 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model relates to the technical field of lithium iron phosphate production equipment, in particular to an automatic slag discharging device of a lithium iron phosphate jet mill; the device comprises an airflow crusher, an air grinding cavity, a lithium iron phosphate feeding port, a lithium iron phosphate discharging port, a crushed slag discharging assembly and a slag collecting vehicle; in the actual production process, a part of particles which are extremely difficult to crush and some foreign matter slag materials which are not intercepted by a sieve row and the like remain, and the existence of the slag materials is very unfavorable to the whole crushing process, so that only the jet mill can be stopped, and then the slag materials are manually cleaned; in the utility model, when slag is generated in the air mill cavity, the slag crushing discharging assembly is started, and the upper and lower automatic butterfly valves are automatically discharged in a one-closed one-open alternative switching mode, so that the slag is discharged out of the air mill cavity, thereby effectively solving the problems that the air mill is frequently stopped and then the slag is manually cleaned, and simultaneously reducing the cost.
Description
Technical Field
The utility model relates to the technical field of lithium iron phosphate processing, in particular to a slag discharging system of a lithium iron phosphate jet mill.
Background
The high temperature solid phase process to synthesize positive electrode material of lithium ion battery includes compounding, grinding, spray drying, sintering, crushing and packing, and the crushing process includes crushing sintered large lithium iron phosphate particle into nanometer level particle meeting certain granularity requirement.
However, some particles which are extremely difficult to crush and some foreign matters which are not intercepted by the in-line screen cannot be crushed, the existence of the slag is very unfavorable to the whole crushing process, if the slag is not cleaned timely, the slag is brought into a lithium iron phosphate finished product, the qualification rate of the whole finished product index is finally affected, in the actual production process, a crusher is usually stopped, and the large-particle matters and the foreign matters are manually cleaned, so that the continuous production is definitely extremely unfavorable, the production capacity is seriously affected, and meanwhile, the manual cleaning cost is correspondingly increased.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides an automatic slag discharging device of a lithium iron phosphate jet mill, which has the advantages of high automation degree, simplicity, capability of improving the overall operation efficiency of the mill and the like, and reduces the labor cost;
in the daily production process, the jet mill is required to be frequently stopped, then large granular substances and foreign matters are manually cleaned, and a great deal of labor cost is consumed.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the automatic slag discharging device of the lithium iron phosphate jet mill comprises a jet mill body, wherein the jet mill body comprises a jet mill cavity, a jet mill classifier is fixedly connected above the inner part of the jet mill cavity, a classifier motor is fixedly arranged on the outer wall of the jet mill cavity, and the jet mill classifier is connected with the classifier motor;
the upper part of the air grinding cavity is provided with a lithium iron phosphate discharging pipe, the lower part of the air grinding cavity is provided with a lithium iron phosphate feeding pipe and an air inlet component, the bottom of the air grinding cavity is provided with a slag discharging outlet which is fixedly communicated with an overhaul butterfly valve, and the lower end of the overhaul butterfly valve is fixedly communicated with a crushing slag discharging component;
further, the air inlet assembly comprises an air inlet main pipe, three air inlet branch pipes and three communicating pipes, wherein the air inlet main pipe and the air inlet branch pipes are respectively communicated through the three communicating pipes, and one side of the air inlet main pipe is provided with an air inlet interface;
further, the crushing slag discharging assembly is sequentially connected with a slag discharging pipe I, an upper automatic butterfly valve, a slag storage pipe, a lower automatic butterfly valve and a slag discharging pipe II from top to bottom;
further, the upper automatic butterfly valve and the lower automatic butterfly valve are pneumatic valves;
furthermore, an observation window is formed in the first slag discharging pipe, and a dust cover is connected to the bottom end of the second slag discharging pipe;
further, a hoop is arranged at the lower part of the dust cover;
further, the air flow crusher comprises an air flow crusher bracket;
further, still include the slag charge collection car, the upper end intercommunication of slag charge collection car has into the sediment pipe, one side of slag charge collection car articulates there is unloads the sediment door, and one side of unloading the sediment door is equipped with spring bolt and handle, one side of slag charge collection car is equipped with weight inductor.
Advantageous effects
1. According to the utility model, the automatic slag discharging function of the lithium iron phosphate jet mill can be realized through the first slag discharging pipe, the upper automatic butterfly valve, the slag storage pipe, the lower automatic butterfly valve and the second slag discharging pipe, slag can be discharged in operation without stopping, the operation efficiency of the jet mill is effectively improved, and meanwhile, the cost of stopping and manually discharging is reduced;
2. the slag collecting vehicle is provided with the weight sensor, and when the weight exceeds the set limit value, workers can be reminded of carrying out slag treatment work, so that the working efficiency is effectively improved;
3. the dust cover is arranged between the crushing slag discharging assembly and the slag collecting vehicle, so that the problem of environmental pollution during slag discharging is effectively solved.
Drawings
FIG. 1 is a perspective view of an automatic slag discharging device of a lithium iron phosphate jet mill according to the present utility model;
FIG. 2 is a partial cross-sectional view of an automatic slag discharging device of a lithium iron phosphate jet mill according to the present utility model;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is a half cross-sectional view of an automatic slag discharging device of a lithium iron phosphate jet mill according to the present utility model;
fig. 5 is a perspective view of the anchor ear.
In the figure: 1. an air flow pulverizer; 11. an air grinding cavity; 12. a jet mill classifier; 13. a grader motor; 2. a lithium iron phosphate discharging pipe; 3. a lithium iron phosphate feed tube; 4. an air intake assembly; 41 intake manifold; 42. an air inlet branch pipe; 43. a communicating pipe; 44. an air inlet interface; 5. a slag discharge outlet; 6. overhauling a butterfly valve; 7. a crushing slag discharging assembly; 71. a slag discharging pipe I; 72. an upper automatic butterfly valve; 73. a slag storage pipe; 74. a lower automatic butterfly valve; 75. a slag discharging pipe II; 76. an observation window; 77. a dust cover; 78. a hoop; 8. a jet mill stand; 9. a slag collecting vehicle; 91. a slag inlet pipe; 92. a slag discharging door; 93. a spring bolt; 94. a handle; 95. a weight sensor.
Detailed Description
Example 1
Referring to fig. 1 and 2, an automatic slag discharging device of a lithium iron phosphate jet mill comprises a jet mill 1, wherein the jet mill 1 comprises a jet mill cavity 11, a jet mill classifier 12 is fixedly connected above the inner part of the jet mill cavity 11, a classifier motor 13 is fixedly arranged on the outer wall of the jet mill cavity, and the jet mill classifier 12 is connected with the classifier motor 13;
the upper part of the air grinding cavity 11 is provided with a lithium iron phosphate discharging pipe 2, the lower part of the air grinding cavity 11 is respectively provided with a lithium iron phosphate feeding pipe 3 and an air inlet component 4, the bottom of the air grinding cavity 11 is provided with a slag discharging outlet 5, the slag discharging outlet 5 is fixedly communicated with an overhaul butterfly valve 6, and the lower end of the overhaul butterfly valve 6 is fixedly communicated with a crushed slag discharging component 7;
the air inlet assembly 4 comprises an air inlet main pipe 41, three air inlet branch pipes 42 and three communicating pipes 43, wherein the air inlet main pipe 41 and the air inlet branch pipes 42 are respectively communicated through the three communicating pipes 43, and one side of the air inlet main pipe 41 is provided with an air inlet interface 44;
in this embodiment, the crushed slag discharging assembly 7 is connected with a slag discharging pipe 71, an upper automatic butterfly valve 72, a slag storage pipe 73, a lower automatic butterfly valve 74 and a slag discharging pipe 75 in sequence from top to bottom; according to the embodiment, the automatic slag discharging function of the lithium iron phosphate jet mill can be realized through the first slag discharging pipe, the upper automatic butterfly valve, the slag storage pipe, the lower automatic butterfly valve and the second slag discharging pipe, slag can be discharged in operation, shutdown is not needed, the operation efficiency of the jet mill is effectively improved, and meanwhile, the cost of shutdown manual discharging is reduced;
in this embodiment, the upper automatic butterfly valve 72 and the lower automatic butterfly valve 74 are pneumatic valves;
in this embodiment, a jet mill stand 8 is also included.
Example 2
Referring to fig. 2 and 3, based on embodiment 1, an observation window 76 is provided on the first slag discharging pipe 71, and a dust cover 77 is connected to the bottom end of the second slag discharging pipe 75; a dust cover is arranged between the crushing slag discharging assembly and the slag collecting vehicle in the embodiment, so that the problem of environmental pollution during slag discharging is effectively solved.
In this embodiment, a hoop 78 is disposed at the lower part of the dust cover 77;
in the embodiment, the slag collecting vehicle 9 is further included, the upper end of the slag collecting vehicle 9 is communicated with a slag inlet pipe 91, one side of the slag collecting vehicle 9 is hinged with a slag discharging door 92, one side of the slag discharging door 92 is provided with a spring bolt 93 and a handle 94, one side of the slag collecting vehicle 9 is provided with a weight sensor 95, and when the weight exceeds a set limit value, workers can be reminded of slag treatment work, so that the working efficiency is effectively improved;
in this embodiment, the slag collecting truck 9 may be manually pushed or may be remotely controlled to automatically move.
Working principle: the utility model feeds materials from a lithium iron phosphate feeding pipe, then supplies air to an air inlet main pipe by an external air source, and the air inlet main pipe divides the air flow to three air inlet branch pipes, so that vortex blowing to an air flow crushing classifier is formed, and then the vortex blowing to the air flow crushing classifier is discharged from a lithium iron phosphate discharging pipe, and an upward aerodynamic force field is formed in an air grinding cavity in the process; when the material enters from the lithium iron phosphate feeding pipe, the material falls into an upward aerodynamic field, enters into an air flow crushing classifier along the air flow, is crushed by the air flow crushing classifier and then is discharged through a lithium iron phosphate discharging pipe, and enters into the next working procedure; in the whole feeding, crushing and discharging processes, partial materials are incompletely crushed and fall into a slag discharging pipe I at the bottom of the jet mill; when slag is ready to be discharged: firstly, an upper automatic butterfly valve is opened, at the moment, the pressure in a slag storage pipe is the same as the pressure in an air mill cavity, slag in a slag storage pipe I falls into the slag storage pipe, then the upper automatic butterfly valve is closed, then a lower automatic butterfly valve is opened, slag in the slag storage pipe enters a slag collecting vehicle through a slag storage pipe II, and finally the lower automatic butterfly valve is closed, so that slag collection is completed; when the slag in the slag collecting vehicle reaches a certain weight, the slag is identified by a weight sensor on the slag collecting vehicle, and then a worker is reminded to carry out slag treatment work; the cleaning frequency of the whole slag discharging process can be freely controlled, and the cleaning time point can be set according to a fixed rule to automatically clean; compared with manual cleaning after shutdown, the whole slag discharging process has the advantages that the time is saved to a great extent, the slag discharging efficiency is remarkably improved, and the labor cost is further reduced.
The maintenance butterfly valve above the crushing slag discharging assembly is a normally open valve, and when the crushing slag discharging assembly fails, the maintenance butterfly valve is closed, and then the crushing slag discharging assembly is maintained and replaced;
the present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
Claims (8)
1. The utility model provides a lithium iron phosphate jet mill automatic slag discharging device, includes jet mill (1), its characterized in that:
the jet mill (1) comprises a jet mill cavity (11), a jet mill classifier (12) is fixedly connected above the inner part of the jet mill cavity (11), a classifier motor (13) is fixed on the outer wall of the jet mill cavity (11), and the jet mill classifier (12) is connected with the classifier motor (13);
the upper portion of air mill cavity (11) is equipped with lithium iron phosphate discharging pipe (2), the lower part of air mill cavity (11) is equipped with lithium iron phosphate inlet pipe (3) and subassembly (4) of admitting air, the bottom of air mill cavity (11) is equipped with arranges sediment export (5), arrange sediment export (5) fixed intercommunication and have maintenance butterfly valve (6), the lower extreme fixed intercommunication of maintenance butterfly valve (6) has crushing sediment discharging component (7).
2. The automatic slag discharging device of the lithium iron phosphate jet mill according to claim 1, wherein:
the air inlet assembly (4) comprises an air inlet main pipe (41), three air inlet branch pipes (42) and three communicating pipes (43), wherein the air inlet main pipe (41) and the air inlet branch pipes (42) are respectively communicated through the three communicating pipes (43), and an air inlet interface (44) is formed in one side of the air inlet main pipe (41).
3. The automatic slag discharging device of the lithium iron phosphate jet mill according to claim 1, wherein:
the crushing slag discharging assembly (7) is sequentially connected with a slag discharging pipe I (71), an upper automatic butterfly valve (72), a slag storage pipe (73), a lower automatic butterfly valve (74) and a slag discharging pipe II (75) from top to bottom.
4. An automatic slag discharging device of a lithium iron phosphate jet mill according to claim 3, wherein:
the upper automatic butterfly valve (72) and the lower automatic butterfly valve (74) are pneumatic valves.
5. An automatic slag discharging device of a lithium iron phosphate jet mill according to claim 3, wherein:
an observation window (76) is formed in the first slag discharging pipe (71), and a dust cover (77) is connected to the bottom end of the second slag discharging pipe (75).
6. The automatic slag discharging device of the lithium iron phosphate jet mill according to claim 5, wherein:
the lower part of the dustproof cover (77) is provided with a hoop (78).
7. The automatic slag discharging device of the lithium iron phosphate jet mill according to claim 1, wherein:
also comprises a jet mill bracket (8).
8. The automatic slag discharging device of the lithium iron phosphate jet mill according to claim 1, wherein:
still include slag charge collection car (9), the upper end intercommunication of slag charge collection car (9) has into sediment pipe (91), one side of slag charge collection car (9) articulates there is unloads sediment door (92), and one side of unloading sediment door (92) is equipped with spring bolt (93) and handle (94), one side of slag charge collection car (9) is equipped with weight inductor (95).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321929145.0U CN220425558U (en) | 2023-07-21 | 2023-07-21 | Automatic slag discharging device of lithium iron phosphate jet mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321929145.0U CN220425558U (en) | 2023-07-21 | 2023-07-21 | Automatic slag discharging device of lithium iron phosphate jet mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220425558U true CN220425558U (en) | 2024-02-02 |
Family
ID=89695389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321929145.0U Active CN220425558U (en) | 2023-07-21 | 2023-07-21 | Automatic slag discharging device of lithium iron phosphate jet mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220425558U (en) |
-
2023
- 2023-07-21 CN CN202321929145.0U patent/CN220425558U/en active Active
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