CN112090837B - Ultrasonic washing equipment for high nickel ternary lithium battery cathode powder materials - Google Patents
Ultrasonic washing equipment for high nickel ternary lithium battery cathode powder materials Download PDFInfo
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- CN112090837B CN112090837B CN202010801472.2A CN202010801472A CN112090837B CN 112090837 B CN112090837 B CN 112090837B CN 202010801472 A CN202010801472 A CN 202010801472A CN 112090837 B CN112090837 B CN 112090837B
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- CN
- China
- Prior art keywords
- baffle plate
- tank
- ternary lithium
- nickel ternary
- cleaning cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000463 material Substances 0.000 title claims abstract description 46
- 238000005406 washing Methods 0.000 title claims abstract description 43
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 38
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 36
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 33
- 239000000843 powder Substances 0.000 title claims abstract description 33
- 238000004140 cleaning Methods 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000005192 partition Methods 0.000 claims description 38
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000003513 alkali Substances 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000012535 impurity Substances 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000010405 anode material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/048—Overflow-type cleaning, e.g. tanks in which the liquid flows over the tank in which the articles are placed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses ultrasonic washing equipment for a high-nickel ternary lithium battery anode powder material, which comprises a washing tank with an inner washing cavity and an outer washing cavity, wherein the cross section of the inner washing cavity is in a regular n-edge shape, the top of the outer wall of the inner washing cavity is provided with an overflow outlet, and the bottom of the inner washing cavity is provided with a liquid inlet. The bottom of the outer cleaning cavity is provided with a liquid outlet, the outer wall surface of the outer cleaning cavity is uniformly provided with a plurality of ultrasonic transducers, the cross section of the outer cleaning cavity is in a shape of a regular n-edge ring, and n is an integer larger than 4. The inner cleaning cavity is internally provided with a baffle plate, the bottom end, the inner end face and the outer end face of the baffle plate are respectively connected with the inner surface of the bottom of the tank, the outer surface of the inner baffle plate and the inner surface of the outer baffle plate in a sealing way, and the overflow outlet and the liquid outlet are positioned at two sides of the baffle plate and are arranged close to the baffle plate. The device has a simple structural form, can effectively remove residual alkali in the high-nickel ternary lithium anode powder material with low power consumption and better material treatment in a short time.
Description
Technical Field
The invention relates to particle washing equipment, in particular to ultrasonic washing equipment for a high-nickel ternary lithium battery anode powder material.
Background
At present, lithium cobaltate, lithium manganate and ternary lithium materials are mainly adopted in the field of electric automobiles as anode materials of automobile batteries. Among them, the ternary lithium material gradually becomes a new mainstream positive electrode material because of the advantages of better comprehensive performance, low price and the like. However, the high-nickel ternary lithium positive electrode powder material generates gas due to residual alkali during use, so that the safety of a battery cell is reduced, and therefore, the reduction of the alkaline residue on the surface of the high-nickel ternary lithium positive electrode powder material becomes a key for the wide application of the high-nickel ternary lithium positive electrode powder material to a power battery positive electrode material.
The residual alkali on the surface of the material can be reduced by washing the high-nickel ternary lithium anode powder material with water, but the residual alkali tightly attached to the surface of the material cannot be sufficiently cleaned by only adopting deionized water or ethanol for leaching. Compared with the traditional cleaning method, the ultrasonic cleaning method is more thorough in cleaning, can effectively remove residual alkali on the surface of the material, has less water resource waste and is beneficial to improving environmental pollution.
Disclosure of Invention
The purpose of the invention is: the ultrasonic washing equipment for the high-nickel ternary lithium battery anode powder material can overcome the defects of the existing washing equipment, achieves ultrasonic washing with a simple structure, is simple to operate and maintain, and can effectively remove residual alkali in materials due to good washing effect and low power consumption and short time of better treatment materials.
The technical scheme adopted by the invention is as follows: the utility model provides a anodal powder material supersound washing of high nickel ternary lithium cell is equipped, includes:
the cleaning tank comprises a tank wall and a tank bottom; an inner partition plate and an outer partition plate are sequentially arranged in the cleaning tank from inside to outside at intervals along the axial direction of the cleaning tank, the inner partition plate and the outer partition plate are cylindrical, the bottom ends of the inner partition plate and the outer partition plate are hermetically connected with the inner surface of the tank bottom, an overflow port is formed in the top of the inner partition plate, and an annular space is formed between the outer partition plate and the tank wall; the inner partition plate and the tank bottom jointly enclose an inner cleaning cavity, the cross section of the inner cleaning cavity is in a regular n-edge shape, a liquid inlet is formed in the tank bottom of the inner cleaning cavity, an outer cleaning cavity is formed by the inner partition plate, the outer partition plate and the tank bottom jointly, the cross section of the outer cleaning cavity is in a regular n-edge ring shape, n is an integer larger than 4, and a liquid outlet is formed in the tank bottom of the outer cleaning cavity;
the bottom end of the baffle is hermetically connected with the inner surface of the tank bottom, the inner end surface of the baffle is hermetically connected with the outer surface of the inner partition plate, the outer end surface of the baffle is hermetically connected with the inner surface of the outer partition plate, and the overflow outlet and the liquid outlet are positioned at two sides of the baffle and are arranged close to the baffle;
the ultrasonic transducers are arranged in the annular space and are uniformly arranged on the outer partition plate.
Preferably, a liquid level sensor for monitoring the liquid level in the outer cleaning cavity is further arranged on the outer partition plate.
Preferably, n is 6, the number of the ultrasonic transducers is 24, and the adjustment range of a single ultrasonic transducer is 20W-100W.
Preferably, the diameters of the liquid inlet and the overflow outlet are both 25 mm.
The working process of cleaning the high-nickel ternary lithium battery anode powder material by the ultrasonic water washing equipment based on the high-nickel ternary lithium battery anode powder material comprises the following steps: the high-nickel ternary lithium anode powder material to be cleaned and deionized water are mixed into slurry through stirring, the ultrasonic washing equipment for the high-nickel ternary lithium battery anode powder material is started, then the slurry is conveyed to the inner washing cavity through the liquid inlet, when the liquid level of the slurry rises to the overflow outlet, the slurry flows into the outer washing cavity through the overflow outlet, and due to the arrangement mode of the overflow outlet, the baffle and the liquid outlet, the slurry flows in the outer washing cavity in a spiral mode and gradually flows to the liquid outlet. In the ultrasonic water washing equipment for the high-nickel ternary lithium battery positive electrode powder material, a large number of micro bubbles generated by ultrasonic cavitation penetrate into gaps between the material and impurities (the impurities are alkaline residues on the surface of the high-nickel ternary lithium positive electrode powder material), so that the adsorption of the impurities on the surface of the material is gradually weakened, and the impurities are stripped. The slurry flows out of the liquid outlet and then flows to subsequent filtering equipment through a pipeline, and is further dried and roasted to finally prepare a finished product. The liquid outlet is provided with a sampling port, so that the cleaning effect can be sampled and analyzed at any time.
The invention has the following beneficial effects: the equipment structure form is comparatively simple, and operation maintenance is simple. The equipment can be used for better treating materials in lower power consumption and shorter time, has good washing effect, and can effectively remove residual alkali in the high-nickel ternary lithium anode powder material.
Drawings
Fig. 1 is a schematic structural diagram (in a top view direction, an upper cover is not shown) of an ultrasonic water washing device for a high-nickel ternary lithium battery positive electrode powder material in an embodiment of the present invention.
Fig. 2 is a schematic structural diagram (in the rear view direction) of an ultrasonic water washing device for a high-nickel ternary lithium battery positive electrode powder material in an embodiment of the present invention.
In the figure: 1-inner partition board, 2-outer partition board, 3-ultrasonic transducer, 4-liquid inlet, 5-overflow outlet, 6-baffle, 7-liquid outlet, 8-tank wall, 9-liquid level sensor, 10-liquid inlet pipe, 11-liquid outlet pipe, 12-upper cover.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description, which do not limit the scope of the invention as claimed.
Referring to fig. 1 and 2, the ultrasonic washing device for the high-nickel ternary lithium battery anode powder material comprises a washing tank, wherein the washing tank comprises a tank wall 8 and a tank bottom. An inner partition plate 1 and an outer partition plate 2 are sequentially arranged in the cleaning tank from inside to outside at intervals along the axial direction of the cleaning tank, the inner partition plate 1 and the outer partition plate 2 are both in a cylindrical shape, and the bottom ends of the inner partition plate 1 and the outer partition plate 2 are hermetically connected with the inner surface of the tank bottom. The top of the inner partition plate 1 is provided with an overflow outlet 5, the inner partition plate 1 and the tank bottom jointly enclose an inner cleaning cavity, the cross section of the inner cleaning cavity is in a regular n-edge shape, the tank bottom of the inner cleaning cavity is provided with a liquid inlet 4, the inner partition plate 1, the outer partition plate 2 and the tank bottom jointly enclose an outer cleaning cavity, the cross section of the outer cleaning cavity is in a regular n-edge annular shape, n is an integer larger than 4, and the tank bottom of the outer cleaning cavity is provided with a liquid outlet 7. An annular space is formed between the outer partition plate 2 and the groove wall 8, specifically, the outer partition plate 2, the groove wall 8 and the groove bottom jointly enclose an annular space with a bottom and without a top, a plurality of ultrasonic transducers 3 are arranged in the annular space, and the plurality of ultrasonic transducers 3 are uniformly arranged on the outer partition plate 1.
The cleaning device is characterized by further comprising a baffle 6 arranged in the outer cleaning cavity along the axial direction, the bottom end of the baffle 6 is hermetically connected with the inner surface of the bottom of the tank, the inner end face of the baffle 6 is hermetically connected with the outer surface of the inner partition plate 1, the outer end face of the baffle 6 is hermetically connected with the inner surface of the outer partition plate 2, and the overflow port 5 and the liquid outlet 7 are located on two sides of the baffle 6 and are arranged close to the baffle 6.
More specifically: the outer partition board 2 is also provided with a liquid level sensor 9 for monitoring the liquid level in the outer cleaning cavity, wherein n is 6, the number of the ultrasonic transducers 3 is 24, and the power adjustment range of the single ultrasonic transducer 3 is 20W-100W. The diameters of the liquid inlet 4 and the overflow outlet 5 are both 25 mm.
The ultrasonic washing equipment for the high-nickel ternary lithium battery positive electrode powder material based on the embodiment is used for cleaning the high-nickel ternary lithium battery positive electrode powder material, and the working process comprises the following steps: will need abluent anodal powder material of high nickel ternary lithium and deionized water through stirring mixing into thick liquids, during the use, feed liquor pipe 10 is connected to the inlet 4 that anodal powder material ultrasonic washing of high nickel ternary lithium cell was equipped, drain pipe 11 is connected to liquid outlet 7, then open anodal powder material ultrasonic washing of high nickel ternary lithium cell and equip, then carry thick liquids to interior washing chamber via inlet 4, when treating that the thick liquids liquid level rises to 5 departments of overflow outlet, thick liquids flow into the outer washing chamber via 5 of overflow outlet, because the setting mode of overflow outlet 5, baffle 6 and liquid outlet 7, thick liquids flow gradually to liquid outlet 7 with the form of spiral in the outer washing chamber. In the ultrasonic water washing equipment for the high-nickel ternary lithium battery positive electrode powder material, a large number of micro bubbles generated by ultrasonic cavitation penetrate into gaps between the material and impurities (the impurities are alkaline residues on the surface of the high-nickel ternary lithium positive electrode powder material), so that the adsorption of the impurities on the surface of the material is gradually weakened to strip the impurities, the purpose of ultrasonic washing is achieved, and slurry after ultrasonic washing flows out from a liquid outlet 7. The slurry flowing out from the liquid outlet 7 can be further connected with a filtering device, and then flows into the filtering device through the liquid outlet pipe 11, and is further dried and roasted after being filtered to finally obtain a finished product. A sampling port can be arranged at the liquid outlet 7, and the effect of sampling, analyzing and cleaning can be performed at any time.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and their concepts should be equivalent or changed within the technical scope of the present invention.
The present invention is not limited to the above embodiments, and those skilled in the art can implement the present invention in other embodiments according to the disclosure of the present invention, or make simple changes or modifications on the design structure and idea of the present invention, and fall into the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801472.2A CN112090837B (en) | 2020-08-11 | 2020-08-11 | Ultrasonic washing equipment for high nickel ternary lithium battery cathode powder materials |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010801472.2A CN112090837B (en) | 2020-08-11 | 2020-08-11 | Ultrasonic washing equipment for high nickel ternary lithium battery cathode powder materials |
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| CN112090837A CN112090837A (en) | 2020-12-18 |
| CN112090837B true CN112090837B (en) | 2022-03-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113649352A (en) * | 2021-08-17 | 2021-11-16 | 焦作市维纳科技有限公司 | Washing device for preparing lithium ion battery anode material |
| CN113857146A (en) * | 2021-09-17 | 2021-12-31 | 浙江宝绿特环保技术工程有限公司 | Ultrasonic cleaning machine |
| CN114011795A (en) * | 2021-09-30 | 2022-02-08 | 宜宾锂宝新材料有限公司 | Lithium battery material washing method and device |
| CN113931848B (en) * | 2021-10-20 | 2023-11-17 | 安徽银龙泵阀股份有限公司 | Sanitary self priming pump stock solution structure |
| CN115041459B (en) * | 2022-06-15 | 2024-07-30 | 江西理工大学 | Method for cleaning residual alkali on surface of positive electrode material of lithium ion battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US592735A (en) * | 1897-10-26 | X j john t | ||
| US8646470B2 (en) * | 2007-07-31 | 2014-02-11 | Frito-Lay North America, Inc. | Compact washing flume system |
| CN202506625U (en) * | 2012-03-07 | 2012-10-31 | 福建浔兴拉链科技股份有限公司 | Cleaning device |
| KR101325543B1 (en) * | 2013-07-23 | 2013-11-20 | 박철우 | Waste vinyl washing device |
| CN203886859U (en) * | 2014-07-03 | 2014-10-22 | 自贡佳源炉业有限公司 | Online ultrasonic powder cleaning machine |
| CN208800472U (en) * | 2018-09-04 | 2019-04-30 | 俊杰机械(深圳)有限公司 | A kind of rinsing bowl |
| CN210230842U (en) * | 2019-07-05 | 2020-04-03 | 甘肃省和顺元中药饮片有限公司 | Ultrasonic medicine washing machine |
| CN210936225U (en) * | 2019-11-12 | 2020-07-07 | 北京凯得隆工贸有限公司 | High efficiency ultrasonic dirt washs jar |
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Effective date of registration: 20230628 Address after: Room 907, Block C, Tianrun Science and Technology Building, Changzhou Science and Education City, No. 801 Changwu Middle Road, Wujin District, Changzhou City, Jiangsu Province, 213100 Patentee after: Changzhou University Asset Management Co.,Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |