CN220970120U - Device for processing unqualified precursor materials and precursor production system - Google Patents
Device for processing unqualified precursor materials and precursor production system Download PDFInfo
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- CN220970120U CN220970120U CN202322508561.XU CN202322508561U CN220970120U CN 220970120 U CN220970120 U CN 220970120U CN 202322508561 U CN202322508561 U CN 202322508561U CN 220970120 U CN220970120 U CN 220970120U
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- washing
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- unqualified
- materials
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- 239000000463 material Substances 0.000 title claims abstract description 55
- 239000002243 precursor Substances 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000005406 washing Methods 0.000 claims abstract description 84
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000003860 storage Methods 0.000 claims abstract description 27
- 239000003513 alkali Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 9
- 239000011593 sulfur Substances 0.000 abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 abstract description 9
- 229910052708 sodium Inorganic materials 0.000 abstract description 6
- 239000011734 sodium Substances 0.000 abstract description 6
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000000047 product Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- 238000000975 co-precipitation Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- DQPKANJRMFFAMN-UHFFFAOYSA-N [Co].[Co].[Ni].[Mn] Chemical compound [Co].[Co].[Ni].[Mn] DQPKANJRMFFAMN-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- SEVNKUSLDMZOTL-UHFFFAOYSA-H cobalt(2+);manganese(2+);nickel(2+);hexahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mn+2].[Co+2].[Ni+2] SEVNKUSLDMZOTL-UHFFFAOYSA-H 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
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- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model provides a device for processing unqualified precursor materials and a precursor production system, and relates to the technical field of chemical equipment. And temporarily storing unqualified precursor materials generated on the production line in a storage tank, conveying the unqualified precursor materials to a washing mechanism according to the types of the unqualified precursor materials, providing washing alkali liquor by using an alkali liquor tank, providing washing water by using a washing tank, performing alkali washing (according to the situation) and water washing in a washing machine, and outputting the sodium-sulfur qualified materials after re-washing. The device for treating unqualified precursor materials can be used for timely treating unqualified high-sodium sulfur materials generated on a production line, and the materials are prevented from being accumulated.
Description
Technical Field
The utility model relates to the technical field of chemical equipment, in particular to a device for processing unqualified precursor materials and a precursor production system.
Background
In the preparation process of the positive electrode material, the preparation of the precursor is a key link, and the advantages and disadvantages of the precursor directly influence the performance of the positive electrode material. The preparation process of the general ternary positive electrode material comprises the following steps: (1) Secondary spherical particles formed by agglomeration of fine grains of nickel cobalt manganese hydroxide are obtained to obtain a precursor; (2) Mixing the precursor with lithium source such as lithium hydroxide and calcining.
The current method for producing the ternary precursor is mainly a coprecipitation method, and is concretely divided into a continuous method and a batch method, and the main steps comprise: preparing a salt solution from nickel salt, cobalt salt, manganese salt or aluminum salt according to a certain proportion, forming cobalt nickel cobalt manganese/aluminum precipitate in the presence of alkali liquor and complexing agent, and obtaining a qualified product through the steps of centrifugal washing, drying, mixing, demagnetizing and the like. In the centrifugation process, unqualified materials are centrifugally washed, and the unqualified materials can be mixed with qualified products on the premise of ensuring the quality of the products.
However, when the system is abnormal, the produced sodium-sulfur data are not mixed with sodium-sulfur qualified products or are mixed in a very small amount, so that a large amount of materials are backlogged, and the quality of the products is ensured.
In view of this, the present application has been proposed.
Disclosure of utility model
The utility model aims to provide a device for processing unqualified precursor materials and a precursor production system, and aims to timely process unqualified high-sodium sulfur materials generated on a production line and avoid material accumulation.
Embodiments of the present utility model are implemented as follows:
In a first aspect, the utility model provides an apparatus for processing off-grade precursor materials, comprising a storage tank for storing off-grade precursor materials, a washing mechanism for performing washing, a wash tank for providing wash water and an alkaline liquid tank for providing wash alkaline, the storage tank being in communication with a feed port of the washing mechanism, the wash tank and the alkaline liquid tank being in communication with the washing mechanism.
In an alternative embodiment, the holding tank is provided with a reject material inlet.
In an alternative embodiment, a hot water supply line for supplying hot water is connected to the storage tank.
In an alternative embodiment, the outlet of the holding tank communicates with the washing mechanism via a first centrifugal pump.
In an alternative embodiment, the outlet of the washing tank is in communication with the washing mechanism via a second centrifugal pump.
In an alternative embodiment, the outlet of the alkaline liquid bath is in communication with the washing mechanism via a third centrifugal pump.
In an alternative embodiment, the washing mechanism is a centrifuge.
In an alternative embodiment, the washing machine further comprises a drying device, and the discharge port of the washing mechanism is communicated with the drying device.
In an alternative embodiment, a stirring mechanism is provided within the holding tank.
In a second aspect, the present utility model provides a precursor production system comprising an apparatus according to any one of the preceding embodiments.
The embodiment of the utility model has the beneficial effects that: and temporarily storing unqualified precursor materials generated on the production line in a storage tank, conveying the unqualified precursor materials to a washing mechanism according to the types of the unqualified precursor materials, providing washing alkali liquor by using an alkali liquor tank, providing washing water by using a washing tank, performing alkali washing (according to the situation) and water washing in a washing machine, and outputting the sodium-sulfur qualified materials after re-washing. The device for treating unqualified precursor materials can be used for timely treating unqualified high-sodium sulfur materials generated on a production line, and the materials are prevented from being accumulated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an apparatus for processing a defective precursor material according to an embodiment of the present utility model.
100-Means for handling reject precursor material; 110-a storage tank; 120-a washing mechanism; 130-a washing tank; 140-alkali liquid tank; 111-unqualified material feeding ports; 112-a hot water delivery line; 151-a first centrifugal pump; 152-a second centrifugal pump; 153-third centrifugal pump.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, the present utility model provides an apparatus 100 for processing a defective precursor material, which includes a storage tank 110 for storing the defective precursor material, a washing mechanism 120 for performing washing, a washing water tank 130 for providing washing water, and a alkaline liquid tank 140 for providing washing alkali. The storage tank 110 communicates with a feed port of the washing mechanism 120, and the wash tank 130 and the alkaline liquid tank 140 communicate with the washing mechanism 120.
The storage tank 110 is used for temporarily storing the unqualified precursor materials, the washing mechanism 120 is used for washing the materials in the storage tank 110 again, and the washing water and the washing alkali solution are respectively supplied to the washing mechanism 120 through the washing water tank 130 and the alkali solution tank 140.
The storage tank 110 is used for temporarily storing the disqualified precursor materials generated in the production line, and the disqualified precursor materials are conveyed to the storage tank 110 through an external conveying pipeline or conveying equipment. In some embodiments, a reject material delivery port 111 is provided on the storage tank 110 to deliver reject precursor material generated in the production line to the storage tank 110 through the reject material delivery port 111.
Specifically, the volume and material of the storage tank 110 are not limited, and may be a general tank structure, and the volume is adjusted according to the process requirements.
In some embodiments, the storage tank 110 is connected with a hot water delivery line 112 for delivering hot water, and since the reject precursor material delivered to the storage tank 110 is a dry solid material, the addition of hot water can form a slurry for delivery to the washing mechanism 120 for washing.
Specifically, the hot water delivery line 112 may communicate with an external heating device to deliver heated hot water to the holding tank 110. The temperature of the hot water is not limited and may be about 70 ℃.
In some embodiments, a stirring mechanism (not shown) is provided in the holding tank 110, and the precursor and the hot water may be sufficiently and uniformly mixed by the stirring mechanism to form a uniform slurry. The specific structure of the stirring mechanism is not limited, and may include a motor, a rotating shaft, a stirring blade, and other structures, and the motor is used to drive the rotating shaft to rotate, so as to drive the stirring blade to rotate, so as to fully mix the solid and liquid materials in the storage tank 110.
In some embodiments, the discharge port of the storage tank 110 communicates with the washing mechanism 120 through the first centrifugal pump 151, and the mixed slurry in the storage tank 110 is supplied to the washing mechanism 120 by the supply of the conveying power through the first centrifugal pump 151.
Similarly, the discharge port of the wash tub 130 may communicate with the washing mechanism 120 through the second centrifugal pump 152 to deliver the washing water into the washing mechanism 120 through the second centrifugal pump 152; the discharge port of the alkali liquid tank 140 may communicate with the washing mechanism 120 through a third centrifugal pump 153 to deliver dilute alkali for washing into the washing mechanism 120 through the third centrifugal pump 153.
Specifically, the first centrifugal pump 151, the second centrifugal pump 152, and the third centrifugal pump 153 may be all existing centrifugal pump structures, and the structures and working principles thereof are not described herein in detail. The wash tank 130 may store clean water, such as deionized water; the aqueous sodium hydroxide solution may be stored in the caustic bath 140 at a concentration of approximately 3% -5%.
In some embodiments, washing mechanism 120 may be a centrifuge, but is not limited thereto. The centrifugal machine is an existing device and is a machine for separating each component in liquid and solid particles or a mixture of liquid and liquid by utilizing centrifugal force.
It should be noted that the washing can be performed separately for the case of sodium super and sulfur super, so that the cost is reduced and the material backlog is avoided. Specifically, the precursor materials with sodium exceeding are intensively washed, and enter a centrifugal machine to be washed by water; the sulfur super materials are washed intensively, and then are washed by alkali and then water after entering a centrifugal machine. For the case that sodium and sulfur are out of standard, alkali washing and water washing can be performed first. Specific operating parameters of the alkaline wash and the water wash may be referred to the prior art and will not be described in detail herein.
Specifically, the alkali washing is performed by using sodium hydroxide aqueous solution, so that the alkali washing can react with sulfur on a precursor, the main component of the hot alkali is NaOH, the hot alkali has strong alkalinity and corrosiveness, the hot alkali can react with impurities on the surface of sulfur to form a compound easy to clean, and in the process, the sulfur reacts with NaOH and water to generate sodium sulfide and water, and then the sodium sulfide and the water are removed by washing.
In some embodiments, the apparatus 100 for processing off-grade precursor materials further comprises a drying apparatus, and the outlet of the washing mechanism 120 is in communication with the drying apparatus for drying off-grade precursor materials for output as precursor products.
Taking an example of an unqualified precursor material requiring alkali washing and water washing, the operation process of the device 100 for treating an unqualified precursor material provided by the utility model is as follows:
Hot water is conveyed into the storage tank 110 through the hot water conveying pipeline 112, the hot water is added to the position of about one third of the storage tank 110, then unqualified materials generated on the production line enter the storage tank 110 through the unqualified material feeding port 111, after stirring for 2-3 hours, the slurry is conveyed to the washing mechanism 120 (such as a centrifugal machine) through the first centrifugal pump 151, after feeding for about 1 hour, the third centrifugal pump 153 is started to convey alkali liquor into the washing mechanism 120 for washing; after washing for about 1 hour, the second centrifugal pump 152 is started to pump the pure water in the washing tub 130 into the washing mechanism 120 for washing. And the qualified materials after washing are used as normal precursor products to enter the next working procedure.
The embodiment of the utility model also provides a precursor production system, which comprises the device 100 for processing unqualified precursor materials in the previous embodiment, and can also comprise other devices such as a coprecipitation device and the like, so as to form a complete precursor production system.
Specifically, the specific structure of the coprecipitation device is not limited, and may include a structure such as a reaction kettle.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The device for treating the unqualified precursor materials is characterized by comprising a storage tank for storing the unqualified precursor materials, a washing mechanism for washing, a washing tank for providing washing water and an alkali liquid tank for providing washing alkali, wherein the storage tank is communicated with a feed inlet of the washing mechanism, and the washing tank and the alkali liquid tank are both communicated with the washing mechanism.
2. The device according to claim 1, wherein the storage tank is provided with a reject material inlet.
3. The apparatus of claim 2, wherein a hot water supply line for supplying hot water is connected to the storage tank.
4. The apparatus of claim 1, wherein the outlet of the holding tank communicates with the washing mechanism via a first centrifugal pump.
5. The apparatus of claim 1, wherein the outlet of the wash tank is in communication with the washing mechanism via a second centrifugal pump.
6. The apparatus of claim 1, wherein the outlet of the alkaline liquid bath is in communication with the washing mechanism via a third centrifugal pump.
7. The apparatus of any one of claims 1-6, wherein the washing mechanism is a centrifuge.
8. The apparatus of claim 7, further comprising a drying device, wherein the discharge port of the washing mechanism is in communication with the drying device.
9. The apparatus of claim 1, wherein the holding tank has a stirring mechanism disposed therein.
10. A precursor production system comprising the apparatus of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322508561.XU CN220970120U (en) | 2023-09-15 | 2023-09-15 | Device for processing unqualified precursor materials and precursor production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322508561.XU CN220970120U (en) | 2023-09-15 | 2023-09-15 | Device for processing unqualified precursor materials and precursor production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220970120U true CN220970120U (en) | 2024-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322508561.XU Active CN220970120U (en) | 2023-09-15 | 2023-09-15 | Device for processing unqualified precursor materials and precursor production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220970120U (en) |
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- 2023-09-15 CN CN202322508561.XU patent/CN220970120U/en active Active
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