Device for manually discharging and filtering lithium ion slurry

Abstract

The utility model discloses a device for manually discharging and filtering lithium ion slurry, which comprises a cart, a transfer barrel arranged above the cart, a filter barrel connected above the transfer barrel, the filter barrel comprises a first filter barrel and a second filter barrel, the second filter barrel is arranged above the first filter barrel, a top cover is connected above the second filter barrel, and the top cover is arranged above the first filter barrel. And a bent pipe is connected above the top cover. The first filtering barrel is arranged above the transfer barrel, the second filtering barrel is arranged above the first filtering barrel, and slurry is filtered through the first filtering barrel and the second filtering barrel, so that compared with the prior art that materials are beaten into the transfer barrel by wrapping a filter screen by hand, the discharging pressure of the stirrer can be effectively buffered; the slurry is filtered twice, so that the large-particle slurry is prevented from entering the transfer barrel, and the quality of the coated pole piece is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of manual discharge filtration technology for slurries, specifically relating to a device for manual discharge filtration of lithium-ion slurries. Background Technology

[0002] As the hottest new energy field, lithium-ion batteries require a slurry homogenization process, which is the first and most important step in the process. 70% of the quality of lithium-ion batteries depends on the slurry homogenization process.

[0003] Currently, the commonly used slurry is fed into a transfer tank by a mixer and then into a coating buffer tank through a coating pipeline. During this process, the slurry passes through three filters to intercept particles, which can effectively reduce the occurrence of problems such as scratches during coating.

[0004] However, during the homogenizer discharge process, there is a situation where the slurry is manually discharged to the coating process. In this case, the slurry is fed through the filter screen of the hand bag to the transfer tank. The discharge pressure of the mixer is high, and large particles in the slurry inevitably squeeze out of the filter screen and into the coating process, affecting the quality of the coated electrode. Utility Model Content

[0005] The purpose of this invention is to provide a manual discharge and filtration device for lithium-ion slurry, thereby solving the problems mentioned in the background section. The manual discharge and filtration device for lithium-ion slurry provided by this invention has the characteristic of preventing large particles from being squeezed out of the filter screen into the coating process, thus ensuring the quality of the coated electrode sheets.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for manual discharge and filtration of lithium-ion slurry, comprising a trolley, a transfer tank placed on top of the trolley, a filter tank connected above the transfer tank, the filter tank comprising a first filter tank and a second filter tank, the second filter tank being disposed above the first filter tank, a top cover connected above the second filter tank, and a bent pipe connected above the top cover.

[0007] To limit the movement of the transfer bucket, ensure its stability during transport, and prevent tipping, a limiting sleeve is connected to the top of the trolley, and the transfer bucket is placed inside the limiting sleeve.

[0008] To buffer the discharge pressure and filter the slurry, the first filter barrel further includes a barrel body with a filter screen connected to the bottom of the barrel body, and the structure of the second filter barrel is the same as that of the first filter barrel.

[0009] To achieve a quick connection between the first filter barrel and the transfer barrel, the outer diameter of the first filter barrel is equal to the inner diameter of the transfer barrel, and a limit ring is connected to the lower end of the barrel's circumference. A convex ring is connected to the upper end of the transfer barrel's circumference.

[0010] To facilitate quick assembly and disassembly between the first filter cartridge and the transfer cartridge, and to make it easy to remove the first filter cartridge for cleaning or replacement, the first filter cartridge and the transfer cartridge are further connected by clamps.

[0011] To allow for ventilation and prevent negative pressure from forming inside the filter canister, an air vent is provided on the top cover.

[0012] To further remove magnetic substances from the slurry, an iron separator is connected between the top cover and the bend.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model has a first filter barrel above the transfer barrel and a second filter barrel above the first filter barrel. The slurry is filtered by the first filter barrel and the second filter barrel. Compared with the prior art of using a hand-held filter screen to feed the material into the transfer barrel, it can effectively buffer the pressure of the mixer discharge, filter the slurry twice, avoid large particles of slurry from entering the transfer barrel, and ensure the quality of the coated electrode.

[0015] 2. The trolley of this utility model is connected to a limiting sleeve at the top, and the transfer bucket is placed inside the limiting sleeve. The limiting sleeve limits the transfer bucket, ensuring the stability of the transfer bucket during the transfer process and preventing it from tipping over.

[0016] 3. The first filter barrel and the transfer barrel of this utility model are connected by a clamp, which facilitates quick assembly and disassembly of the first filter barrel and the transfer barrel, and makes it easy to remove the first filter barrel for cleaning or replacement.

[0017] 4. The top cover and the bend of this utility model are connected by an iron remover, which removes magnetic substances from the slurry. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a partial structural diagram of the connection between the first filter barrel and the transfer barrel of this utility model.

[0020] In the diagram: 1. Trolley; 2. Limiting sleeve; 3. Transfer bucket; 31. Convex ring; 4. Clamp; 5. First filter bucket; 51. Bucket body; 52. Filter screen; 53. Limiting ring; 6. Second filter bucket; 7. Bend; 8. Iron remover; 9. Air inlet; 10. Top cover. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figures 1-2 The present invention provides the following technical solution: a device for manual discharge and filtration of lithium-ion slurry, including a trolley 1, a transfer tank 3 placed on top of the trolley 1, a filter tank connected above the transfer tank 3, the filter tank including a first filter tank 5 and a second filter tank 6, the second filter tank 6 being disposed above the first filter tank 5, a top cover 10 connected above the second filter tank 6, and a bent pipe 7 connected above the top cover 10.

[0024] By adopting the above technical solution, this utility model sets a first filter barrel 5 above the transfer barrel 3 and a second filter barrel 6 above the first filter barrel 5. The slurry is filtered by the first filter barrel 5 and the second filter barrel 6. Compared with the prior art of using a hand-held filter screen to feed the material into the transfer barrel, this can effectively buffer the pressure of the mixer discharge, filter the slurry twice, prevent large particles of slurry from entering the transfer barrel 3, and ensure the quality of the coated electrode.

[0025] Specifically, a limiting sleeve 2 is connected to the top of the trolley 1, and a transfer bucket 3 is placed inside the limiting sleeve 2. The outer diameter of the transfer bucket 3 is equal to the inner diameter of the limiting sleeve 2.

[0026] By adopting the above technical solution, the transfer bucket 3 is limited by the limiting sleeve 2, which ensures the stability of the transfer bucket 3 during the transfer process and avoids tipping.

[0027] Specifically, the first filter barrel 5 includes a barrel body 51, and a filter screen 52 is connected to the bottom of the barrel body 51. The structure of the second filter barrel 6 is the same as that of the first filter barrel 5.

[0028] The above technical solution is used to buffer the discharge pressure and filter the slurry.

[0029] Specifically, the outer diameter of the first filter barrel 51 is equal to the inner diameter of the transfer barrel 3, and a limiting ring 53 is connected to the lower end of the circumference of the barrel 51, which limits the barrel 51.

[0030] By adopting the above technical solution, a rapid connection between the first filter tank 5 and the transfer tank 3 can be achieved.

[0031] Specifically, the top cover 10 is equipped with an air vent 9.

[0032] By adopting the above technical solution, air can be ventilated to avoid negative pressure inside the filter canister.

[0033] Example 2

[0034] The difference between this embodiment and embodiment 1 is that: specifically, a convex ring 31 is connected to the upper end of the circumference of the transfer barrel 3, and the first filter barrel 5 and the transfer barrel 3 are connected by a clamp 4. The connection between the first filter barrel 5 and the transfer barrel 3 is realized by the cooperation of the convex ring 31 and the limiting ring 53 with the clamp 4.

[0035] By adopting the above technical solution, it is convenient to quickly assemble and disassemble the first filter cartridge 5 and the transfer cartridge 3, and to easily remove the first filter cartridge 5 for cleaning or replacement. The connection method between the second filter cartridge 6 and the first filter cartridge 5, and between the top cover 10 and the second filter cartridge 6, is the same as the connection method between the first filter cartridge 5 and the transfer cartridge 3.

[0036] Example 3

[0037] The difference between this embodiment and embodiment 1 is that, specifically, a magnetic separator 8 is connected between the top cover 10 and the bend 7. The magnetic separator 8 is a demagnetizing filter, model 24-C-217-12000GS, manufactured by Hangzhou Zhaobo Filtration Technology Co., Ltd.

[0038] By adopting the above technical solution, magnetic substances in the slurry are removed by the iron remover 8.

[0039] In summary, this invention features a first filter barrel 5 above the transfer barrel 3 and a second filter barrel 6 above the first filter barrel 5. The slurry is filtered through both the first and second filter barrels 5 and 6. Compared to the prior art where material is manually fed into the transfer barrel using a filter screen, this effectively buffers the pressure of the mixer discharge, performs two filtrations of the slurry, and prevents large particles from entering the transfer barrel 3, thus ensuring the quality of the coated electrode. A limiting sleeve 2 is connected to the top of the trolley 1, and the transfer barrel 3 is placed inside the limiting sleeve 2. The limiting sleeve 2 limits the transfer barrel 3, ensuring its stability during transport and preventing tipping. The first filter barrel 5 and the transfer barrel 3 are connected by a clamp 4, facilitating quick assembly and disassembly of the first filter barrel 5 for cleaning or replacement. A magnetic separator 8 is connected between the top cover 10 and the bend 7 to remove magnetic substances from the slurry.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for manually discharging and filtering lithium-ion slurry, characterized in that: It includes a trolley, on top of which is a transfer bucket. Above the transfer bucket is a filter bucket, which includes a first filter bucket and a second filter bucket. The second filter bucket is positioned above the first filter bucket, and a top cover is connected to the top of the second filter bucket. A curved pipe is connected to the top of the top cover.

2. The device for manual discharge and filtration of lithium-ion slurry according to claim 1, characterized in that: The trolley is connected to a limiting sleeve at the top, and the transfer bucket is placed inside the limiting sleeve.

3. The device for manual discharge and filtration of lithium-ion slurry according to claim 1, characterized in that: The first filter barrel includes a barrel body, and a filter screen is connected to the bottom of the barrel body. The structure of the second filter barrel is the same as that of the first filter barrel.

4. The device for manual discharge and filtration of lithium-ion slurry according to claim 3, characterized in that: The outer diameter of the first filter barrel is equal to the inner diameter of the transfer barrel, and a limit ring is connected to the lower end of the barrel circumference.

5. The device for manual discharge and filtration of lithium-ion slurry according to claim 1, characterized in that: The upper end of the circumference of the transfer bucket is connected to a convex ring.

6. The device for manual discharge and filtration of lithium-ion slurry according to claim 1, characterized in that: The first filter barrel and the transfer barrel are connected by clamps.

7. The device for manual discharge and filtration of lithium-ion slurry according to claim 1, characterized in that: The top cover is equipped with an air vent.

8. The device for manual discharge and filtration of lithium-ion slurry according to claim 1, characterized in that: A magnetic separator is connected between the top cover and the bend.

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