Environment-friendly negative electrode adhesive recovery device

By designing an environmentally friendly negative electrode binder recovery device with multi-layer pore size decreasing filter plates and stirring components, the problems of low efficiency and easy clogging of traditional recovery equipment are solved, realizing efficient and environmentally friendly negative electrode binder recovery, reducing costs and maintenance frequency.

CN224010647UActive Publication Date: 2026-03-20GUANGDONG DEZHU TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520681299.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-20
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Existing technologies have low recovery efficiency for negative electrode binders. Traditional recovery equipment is complex in structure, costly, and difficult to maintain. The filtration process is prone to clogging, making it difficult to guarantee the quality of recovery.

Method used

An environmentally friendly negative electrode adhesive recovery device is designed, which uses multi-layer filter plates with decreasing pore size and a stirring assembly, combined with an external pipe and a nozzle, to achieve uniform stirring and separation of materials. The filter plates are cleaned by a brush driven by an electric telescopic rod to prevent clogging.

Benefits of technology

It improves the recovery efficiency and quality of negative electrode binder, extends the service life of the device, reduces equipment costs and maintenance frequency, is highly adaptable, and conforms to the concept of environmental protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an environment-friendly negative electrode adhesive recovery device. The environment-friendly negative electrode adhesive recovery device comprises a tank body, a motor arranged at the upper end of the tank body, a plurality of filter plates arranged in the tank body, an external pipe arranged at the upper end of the tank body, a blanking pipe arranged at the lower end of the tank body, and a charging hole formed in the upper end of the tank body. According to the environment-friendly negative electrode adhesive recovery device, by arranging an external pipe, a stirring piece and other structures, the external pipe is connected with a conveying pipe and a spray head, an auxiliary solvent can be input according to needs, dissolution and dispersion of materials are promoted, the recovery efficiency and quality of a negative electrode adhesive are improved, a cleaning solution can be introduced, the tank body can be comprehensively cleaned, operation is easy and convenient, adaptability is high, and the environment-friendly negative electrode adhesive recovery device is suitable for popularization and application. The stirring blades are located on the two sides of the filter plate, material accumulation is effectively prevented, the clamping grooves are connected with the stirring rod clamping blocks, and maintenance and replacement are convenient; the brush sliding block at the bottom is controlled by the electric telescopic rod to clean the filter plate, blockage is prevented, smooth filtering is guaranteed, stable operation of the device in a complex environment is guaranteed through the waterproof sealing design, and the performance of the device is greatly improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to negative adhesive recovery technical field more specifically, relate to a kind of environment-friendly negative adhesive recovery device. BACKGROUND

[0002] In the battery production process, the preparation of negative material is often used to ensure the good combination between active material and current collector by using adhesive;However, in the production process, waste slurry or cleaning liquid containing adhesive will be generated, if it is directly discharged, not only will cause resource waste, but also will pollute the environment.

[0003] Traditional recovery mode has many drawbacks, on the one hand, lack of efficient separation means, it is difficult to accurately recover negative adhesive from complex materials, and the recovery efficiency is low;On the other hand, the structure of the recovery equipment is complex, the cost is high, and the maintenance is difficult, which is not conducive to large-scale popularization and application;In addition, in the filtration process, the material is easy to accumulate and block on the filter plate, which affects the continuity and effect of filtration, and the recovery quality is difficult to guarantee.

[0004] The utility model can further improve the efficiency of the device for recovering negative adhesive. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the technical problems in the above background art, and provides an environment-friendly negative adhesive recovery device.

[0006] To achieve the above object, the utility model provides the following technical scheme: an environment-friendly negative adhesive recovery device, comprising: a tank body, a motor is arranged at the upper end of the tank body, a plurality of filter plates are arranged in the tank body, an external connecting pipe is arranged at the upper end of the tank body, a discharge pipe is arranged at the lower end of the tank body, and a feeding port is formed in the upper end of the tank body.

[0007] A rotating rod is mounted at the output end of the motor, a plurality of stirring groups are nested on the outer surface of the rotating rod, each stirring group comprises two stirring blades and a stirring rod, the stirring rod is mounted on the outer side of the two stirring blades by bolts, and the stirring blades are arranged on the upper and lower sides of the filter plate.

[0008] Further preferred scheme: the pore size of the filter plate decreases from top to bottom.

[0009] Further preferred scheme: a conveying pipe is mounted at one end of the external connecting pipe, a plurality of spray heads are embedded at the bottom of the conveying pipe, and the conveying pipe is located in the tank body.

[0010] Further preferred scheme: a clamping groove is formed in one side of the stirring blade, two clamping blocks are arranged on the side surface of the stirring rod, the two clamping blocks are embedded in the clamping groove, and the clamping blocks are connected with the clamping groove by bolts.

[0011] Further preferred: the stirring rod is tapered on the outside, and is made of stainless steel.

[0012] Further preferred: one of the stirring blades is provided with a groove in the bottom plate, and a sliding block is embedded in the groove, the bottom of the sliding block is made of a brush, and the stirring blade is hollow.

[0013] Further preferred: an electric telescopic rod is embedded in the stirring blade, one end of the electric telescopic rod is embedded in the sliding block, the outer surface of the electric telescopic rod is waterproof treated, and the sliding block is sealable when embedded in the groove.

[0014] Beneficial effects:

[0015] 1. By setting the external pipe, one end of the external pipe is connected to the conveying pipe, and the bottom of the conveying pipe is provided with a spray head. It has many advantages. When a specific solvent needs to be added to assist the separation of the negative adhesive and other materials during the material processing process, the external pipe can introduce the corresponding liquid into the conveying pipe, which is uniformly sprayed on the material through the spray head. This helps to dissolve and disperse the material, promotes better separation of different components, greatly improves the recovery efficiency and quality of the negative adhesive, and after the device is used, the external pipe can also be used to introduce cleaning liquid to clean the inside of the tank, including the filter plate, the stirring group and other key components. The characteristics of uniform spraying of the spray head can ensure that there is no dead angle in cleaning, prevent material residues, and prolong the service life of the device. In addition, the operation of liquid delivery through the external pipe is simple and convenient, and the type and flow of the liquid can be flexibly adjusted according to the actual work requirements, which enhances the adaptability of the device to different working scenes, further highlights its practical value and multifunctionality in the whole negative adhesive recovery process.

[0016] 2. By setting the stirring blade, the stirring blade, as an important part of the stirring group, plays a key role. It is located on both sides of the filter plate and rotates under the drive of the motor. It can effectively prevent the material from accumulating on the filter plate and ensure that the material is fully stirred near the filter plate, creating conditions for efficient filtration and separation of the material. One side of the stirring blade is provided with a clamping groove, which cooperates with the clamping block on the side of the stirring rod and is connected by bolts. This structure is stable and convenient to install and disassemble, facilitating the maintenance and replacement of the stirring assembly. One of the stirring blades is provided with a brush sliding block controlled by an electric telescopic rod in the bottom groove. When the stirring blade rotates, the sliding block can clean the surface of the filter plate and remove impurities and residual materials in time to prevent the filter plate from being blocked, ensure smooth filtration, improve the continuous working capacity of the device, and reduce the frequency and cost of manual maintenance. At the same time, the waterproof treatment of the electric telescopic rod and the sealing design between the sliding block and the groove ensure the stable operation of the stirring blade and the related cleaning structure in complex liquid environment, enhance the reliability and service life of the device, and improve the performance of the device in the negative adhesive recovery process.

[0017] 3. In summary, this environmentally friendly negative electrode binder recovery device, with its external connecting pipe and stirring blades, allows for the input of auxiliary solvents as needed to promote material dissolution and dispersion, thereby improving the recovery efficiency and quality of the negative electrode binder. It also allows for the introduction of cleaning fluid for thorough tank cleaning. Furthermore, it is easy to operate and highly adaptable. The stirring blades, located on both sides of the filter plate, effectively prevent material accumulation. Their slots connect to the stirring rod blocks for easy maintenance and replacement. The bottom brush slider, controlled by an electric telescopic rod, cleans the filter plate, preventing clogging and ensuring smooth filtration. The waterproof sealing design ensures stable operation in complex environments, significantly improving the device's performance. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the internal structure of the tank of this utility model.

[0020] Figure 3 This is a schematic diagram of the stirring blade and stirring rod of this utility model.

[0021] Figure 4 This is an exploded structural diagram of the stirring plate and slider of this utility model.

[0022] Figure 5 This is a schematic diagram of the slider structure of this utility model.

[0023] Figures 1-5 In the middle: 1. Tank body; 101. Feed pipe; 102. Feed port; 2. Motor; 201. Rotating rod; 3. Filter plate; 4. External pipe; 401. Conveying pipe; 402. Nozzle; 5. Mixing assembly; 501. Mixing blade; 502. Mixing rod; 503. Slot; 504. Locking block; 505. Groove; 506. Sliding block; 507. Electric telescopic rod. Detailed Implementation

[0024] The following will refer to the appendix in the embodiments of this utility model. Figures 1-5 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0025] Please see Figures 1-5In this embodiment of the utility model, an environmentally friendly negative electrode adhesive recycling device includes: a tank 1, a motor 2 installed at the upper end of the tank 1, several filter plates 3 installed inside the tank 1, an external pipe 4 installed at the upper end of the tank 1, a discharge pipe 101 installed at the lower end of the tank 1, and a feeding port 102 opened at the upper end of the tank 1; a rotating rod 201 is installed at the output end of the motor 2, and several stirring groups 5 are nested on the outer surface of the rotating rod 201. The stirring group 5 includes two stirring blades 501 and a stirring rod 502. The stirring rod 502 is installed on the outside of the two stirring blades 501 by bolts. The stirring blades 501 are located on the upper and lower sides of the filter plates 3; the aperture of the filter plates 3 decreases from top to bottom.

[0026] Material containing negative electrode binder is added into tank 1 through feed port 102. Motor 2 is started, and motor 2 drives rotating rod 201 to rotate. The stirring group 5 on rotating rod 201 rotates accordingly. The stirring blades 501 and stirring rod 502 in stirring group 5 stir the material. The stirring blades 501 located on the upper and lower sides of filter plate 3 can ensure that the material is fully stirred near filter plate 3, preventing the material from accumulating on filter plate 3. At the same time, it can better separate different components in the material, which is helpful for subsequent filtration operations. While the material is being stirred, it will flow downward due to gravity. During the flow, the material passes through filter plates 3 with different pore sizes. The pore size of filter plates 3 decreases from top to bottom, which can gradually and finely filter the material and separate substances of different particle sizes. The negative electrode binder that meets the requirements passes through the corresponding filter plate 3 and is finally recovered. After filtration, the negative electrode binder will be discharged from tank 1 through discharge pipe 101. The process then moves to the next processing step. By setting up multiple layers of filter plates 3 with decreasing pore sizes and a stirring group 5, efficient separation and recovery of the negative electrode binder can be achieved, improving recovery efficiency and quality. The stirring group 5 stirs on both the upper and lower sides of the filter plates 3, effectively preventing material accumulation and clogging on the filter plates 3, ensuring smooth filtration, and extending the service life of the device. This device can recycle and reuse the negative electrode binder, reducing waste emissions and environmental pollution, while also saving resources and conforming to environmental protection principles. The overall structure of the device is relatively simple, mainly composed of tank 1, motor 2, filter plates 3, stirring group 5, etc., making it easy to manufacture, install, and maintain, reducing equipment and operating costs. The pore size of the filter plates 3 and the rotation speed of the stirring group 5 can be adjusted according to different negative electrode binder and material characteristics to adapt to various recovery needs, demonstrating strong applicability and flexibility.

[0027] In this embodiment of the present invention, a conveying pipe 401 is installed at one end of the outer pipe 4, and a plurality of nozzles 402 are embedded in the bottom of the conveying pipe 401. The conveying pipe 401 is located inside the tank body 1. A slot 503 is provided on one side of the stirring plate 501, and two locking blocks 504 are provided on the side of the stirring rod 502. The two locking blocks 504 are embedded in the slot 503 and are connected to the slot 503 by bolts. The outer side of the stirring rod 502 is conical and the stirring rod 502 is made of stainless steel. A groove 505 is provided on the bottom plate of one of the stirring plates 501, and a slider 506 is embedded in the groove 505. The bottom of the slider 506 is made of brush material, and the inside of the stirring plate 501 is hollow. An electric telescopic rod 507 is embedded in the stirring plate 501. One end of the electric telescopic rod 507 is embedded in the slider 506. The outer surface of the electric telescopic rod 507 is waterproofed, and the slider 506 is sealed inside the groove 505.

[0028] A nozzle 402 is installed at the bottom of the conveying pipe 401 connected to one end of the external connecting pipe 4. When it is necessary to clean the inside of the tank 1 or to perform special treatment on the material (such as spraying a specific solvent to assist separation), the corresponding liquid is introduced into the conveying pipe 401 through the external connecting pipe 4. The liquid is evenly sprayed onto the filter plate 3, material, and other positions inside the tank 1 through the nozzle 402. This helps to dissolve and disperse the material, further promotes the separation and recovery of the negative electrode binder, and also facilitates the cleaning of the inside of the tank 1. The slot 503 on one side of the stirring plate 501 and the locking block 504 on the side of the stirring rod 502 cooperate with each other and are fixed by bolts to form a stable stirring group 5 structure. The outer side of the stirring rod 502 is conical. The stirring group 5 is rotated by the rotating rod 201. When in motion, the conical stirring rod 502 can more effectively stir and disperse the material, enhancing the stirring effect and making the material more evenly distributed in the tank 1, which is beneficial for subsequent filtration and separation. When the stirring blade 501 rotates, the slider 506 in the groove 505 at the bottom of one of the stirring blades 501 can move along the groove 505 under the action of the electric telescopic rod 507. Since the bottom of the slider 506 is made of brush material, when the slider 506 moves, the brush can clean the surface of the filter plate 3, removing impurities and residual materials attached to the filter plate 3, preventing the filter plate 3 from clogging, and ensuring the filtration effect. The outer surface of the electric telescopic rod 507 is waterproofed, and the slider 506 can be sealed inside the groove 505 to ensure normal operation in a liquid environment. To prevent liquid from entering the electric telescopic rod 507 and causing damage, the materials undergo a series of processes including stirring, spraying, and filtration under the coordinated operation of the aforementioned components. The negative electrode binder is gradually separated and recovered through the filter plate 3, achieving effective recovery of the negative electrode binder. The nozzle 402 allows for auxiliary treatment such as spraying solvents onto the materials, which helps to better separate the negative electrode binder and improve recovery efficiency and quality. At the same time, the conical stirring rod 502 can more efficiently stir the materials, making the material mix more evenly and further promoting separation. The brush slider 506 structure on the stirring plate 501 can automatically clean the surface of the filter plate 3, promptly removing impurities and residual materials from the filter plate 3, preventing the filter plate 3 from clogging, ensuring the smooth progress of the filtration process, and improving efficiency. The device's continuous operating capability reduces the frequency and cost of manual maintenance. The stirring blade 501 and stirring rod 502 are connected by bolts via a locking block 504 and a slot 503, resulting in a stable structure that facilitates installation and disassembly, allowing for convenient maintenance and replacement of the five stirring components. The electric telescopic rod 507 controls the movement of the brush slider 506, making cleaning operations more flexible and allowing adjustment of cleaning intensity and range according to actual needs. The waterproof treatment of the electric telescopic rod 507 and the sealing design between the slider 506 and the groove 505 ensure normal operation of the device in liquid-containing working environments, improving its reliability and service life. This device not only recovers the negative electrode adhesive but also provides cleaning and auxiliary material processing functions for the inside of tank 1.It possesses strong versatility and practicality, adapting to diverse work requirements.

[0029] Working principle: Material containing negative electrode binder is added into tank 1 through the feed port 102 at the top of tank 1. Motor 2 is started, and its output drives the rotating rod 201 to rotate. Several stirring groups 5 nested on the outer surface of the rotating rod 201 rotate accordingly. Each stirring group 5 consists of two stirring blades 501 and a stirring rod 502. The stirring rod 502 is bolted to the outside of the two stirring blades 501, and the stirring blades 501 are located on the upper and lower sides of the filter plate 3. During rotation, the stirring blades 501 and stirring rod 502 stir the material, ensuring that the material near the filter plate 3 is fully stirred, preventing material accumulation on the filter plate 3, and promoting better separation of different components in the material, thus preparing for subsequent filtration operations. In preparation, while stirring, the material flows downwards due to gravity. Several filter plates 3 are installed inside the tank 1, with the pore size decreasing from top to bottom. As the material flows downwards, it passes through the filter plates 3 with different pore sizes, achieving gradual and fine filtration of materials of different particle sizes. Only the negative electrode adhesive that meets the requirements passes through the corresponding filter plate 3, ultimately achieving recovery. The filtered negative electrode adhesive is discharged through the discharge pipe 101 at the lower end of the tank 1 and enters the next processing step. Several nozzles 402 are embedded at the bottom of the conveying pipe 401 installed at one end of the external pipe 4. When it is necessary to clean the inside of the tank 1 or perform special treatment on the material (such as spraying specific solvents to assist separation), the nozzles 402 are used. The corresponding liquid is introduced into the delivery pipe 401. The liquid is evenly sprayed onto the filter plate 3 and other materials inside the tank 1 through the nozzle 402, helping to dissolve and disperse the materials, further promoting the separation and recovery of the negative electrode binder, and facilitating the cleaning of the inside of the tank 1. The outer side of the stirring rod 502 is conical. When the rotating rod 201 drives the stirring group 5 to rotate, it can more effectively stir and disperse the materials, enhance the stirring effect, and make the materials more evenly distributed in the tank 1, which is beneficial to subsequent filtration and separation. One of the stirring blades 501 has a groove 505 at the bottom, and a slider 506 is embedded in the groove 505. The bottom of the slider 506 is made of brush material. An electric... The electric telescopic rod 507 has one end embedded inside the slider 506. When the stirring plate 501 rotates, the electric telescopic rod 507 controls the slider 506 to move within the groove 505. The brush cleans the surface of the filter plate 3, removing impurities and residual materials adhering to the filter plate 3, preventing the filter plate 3 from clogging, and ensuring the filtration effect. The outer surface of the electric telescopic rod 507 is waterproofed, and the slider 506 can be sealed inside the groove 505 to ensure normal operation in a liquid environment and prevent liquid from entering the electric telescopic rod 507 and causing damage. This achieves effective recovery of the negative electrode adhesive and also has cleaning and auxiliary treatment functions, improving recovery efficiency, quality, and the practicality and reliability of the device.

Claims

1. An environmentally friendly negative electrode adhesive recycling device, comprising: The tank (1) is characterized in that: a motor (2) is provided at the upper end of the tank (1), a plurality of filter plates (3) are provided inside the tank (1), an external pipe (4) is provided at the upper end of the tank (1), a discharge pipe (101) is provided at the lower end of the tank (1), and a feeding port (102) is provided at the upper end of the tank (1). The output end of the motor (2) is equipped with a rotating rod (201). Several stirring groups (5) are nested on the outer surface of the rotating rod (201). The stirring group (5) includes two stirring blades (501) and a stirring rod (502). The stirring rod (502) is installed on the outside of the two stirring blades (501) by bolts. The stirring blades (501) are located on the upper and lower sides of the filter plate (3).

2. The environmentally friendly negative electrode adhesive recovery device according to claim 1, characterized in that: The pore size of the filter plate (3) decreases from top to bottom.

3. The environmentally friendly negative electrode adhesive recovery device according to claim 1, characterized in that: One end of the external pipe (4) is equipped with a conveying pipe (401), and a number of nozzles (402) are embedded in the bottom of the conveying pipe (401). The conveying pipe (401) is located inside the tank (1).

4. The environmentally friendly negative electrode adhesive recovery device according to claim 1, characterized in that: Each of the stirring blades (501) has a slot (503) on one side, and the stirring rod (502) has two locking blocks (504) on its side. The two locking blocks (504) are embedded in the slots (503) and are connected to the slots (503) by bolts.

5. The environmentally friendly negative electrode adhesive recovery device according to claim 1, characterized in that: The stirring rod (502) has a conical shape on the outside and is made of stainless steel.

6. The environmentally friendly negative electrode adhesive recovery device according to claim 1, characterized in that: One of the stirring plates (501) has a groove (505) on its bottom plate, and a slider (506) is embedded inside the groove (505). The bottom of the slider (506) is made of brush material, and the stirring plate (501) is hollow inside.

7. The environmentally friendly negative electrode adhesive recovery device according to claim 6, characterized in that: An electric telescopic rod (507) is embedded inside the stirring plate (501). One end of the electric telescopic rod (507) is embedded inside the slider (506). The outer surface of the electric telescopic rod (507) is waterproofed. The slider (506) is embedded in the groove (505) and can be sealed.