A stripping and recycling device for waste electrode tabs

Abstract

The utility model relates to battery recovery technical field, concretely relates to a kind of stripping and recycling device of waste electrode pole piece, it includes: crushing component, stripping component, separating component and collection component, by integrating crushing component, stripping component, separating component and collection component in one coherent system, the whole-process automation and integration from waste pole piece feeding to pole powder and metal foil classification recovery are realized, greatly simplify operation process, improve overall recovery efficiency.The whole device operates under the negative pressure environment provided by negative pressure induced draft fan.This design provides power for the automatic transmission of materials, enabling continuous operation of the system.On the other hand, the closed environment can effectively suppress dust dispersion, ensuring a clean production environment and avoiding secondary pollution.

Description

Technical Field

[0001] This utility model relates to the field of battery recycling technology, specifically to a stripping and recycling device for waste electrode sheets. Background Technology

[0002] With the rapid development of the new energy vehicle and energy storage markets, the use of lithium-ion batteries has increased dramatically, leading to a surge in the amount of waste electrode sheets (including positive and negative electrodes) generated during their production. These waste electrode sheets are rich in high-value materials such as lithium, cobalt, nickel, manganese, copper, and graphite, making them valuable for recycling. Efficient recycling of waste electrode sheets not only contributes to resource recycling but also effectively reduces environmental pollution.

[0003] Currently, the main methods for recycling waste electrode sheets include wet recycling, pyrometallurgical recycling, and mechanical-physical recycling. Wet recycling separates metal foil from electrode powder through solvent immersion and water washing, but it suffers from problems such as large consumption of chemical reagents and potential secondary pollution. Pyrometallurgical recycling decomposes the binder through high-temperature treatment to achieve component separation, but it is energy-intensive and can easily generate harmful gases. Mechanical-physical recycling relies on gravity or magnetic separation, which is more environmentally friendly, but the process is complex, the separation efficiency is low, and the recycling effect is not ideal.

[0004] Therefore, there is an urgent need for a new type of waste electrode recycling device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a stripping and recycling device for waste electrode sheets to solve the problems of poor environmental performance and low recycling efficiency in the prior art.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides a waste electrode sheet stripping and recycling device comprising: a crushing component, a stripping component, a separation component, and a collection component; wherein, The pulverizing assembly includes a pulverizing container and a pulverizing mechanism. The pulverizing container has a first inlet and a first outlet. The pulverizing mechanism is disposed inside the pulverizing container to pulverize waste electrode sheets. The stripping assembly includes a primary stripping assembly and a secondary stripping assembly; the primary stripping assembly includes a primary stripping container and a primary stirring stripping mechanism disposed within the primary stripping container; the primary stripping container includes a second inlet and a second outlet, the second inlet being connected to the first outlet; the primary stirring stripping mechanism performs primary stripping of the pulverized waste electrode sheet metal foil and electrode powder to obtain primary metal foil and electrode powder. The separation assembly includes a cyclone feeder separator, which includes a separation container and a negative pressure blower. The separation container has a third feed inlet, a dust outlet, and a third discharge outlet. The third feed inlet is connected to the second discharge outlet. The negative pressure blower is connected to the dust outlet. Under the negative pressure blower, the electrode powder is output through the dust outlet, and the primary metal foil is output through the third discharge outlet under the action of gravity. The secondary stripping assembly includes a secondary stripping container and a secondary stirring stripping mechanism disposed in the secondary stripping container. The secondary stripping container has a fourth inlet and a fourth outlet. The fourth inlet is connected to the third outlet. The secondary stirring stripping mechanism strips the metal foil of the primary metal foil from the electrode powder again to obtain the secondary metal foil and the electrode powder. The collection component includes a secondary separation component and a dust collection mechanism; the secondary separation component is connected to the fourth discharge port and is used to separate and recover the secondary metal foil and the electrode powder; the dust collection mechanism is located between the dust discharge port and the negative pressure fan to recover the electrode powder.

[0007] Preferably, the secondary separation component includes a vibrating screen, which is located at the fourth discharge port and is used to vibrate and screen the secondary metal foil and the electrode powder.

[0008] Preferably, the crushing mechanism includes a first motor and a crushing roller driven by the first motor. The crushing roller includes a roller shaft and a plurality of roller blades disposed on the roller shaft. The roller shaft is disposed through the crushing container. The first motor is connected to the roller shaft.

[0009] Preferably, the primary stirring and stripping mechanism includes a fixed stirring rod disposed on the inner side of the primary stripping container and a rotary stirring assembly; the rotary stirring assembly includes a second motor, a stirring disc driven by the second motor to rotate, and a plurality of rotary stirring rods disposed on the stirring disc; wherein, the fixed stirring rod is disposed outside the stirring path of the rotary stirring rod.

[0010] Preferably, the primary stripping container includes a first side and a second side disposed opposite to each other, the fixed stirring rod is disposed on the second side, and the rotating stirring assembly is disposed on the first side; The stirring plate is coaxially arranged with the output shaft of the second motor so that the stirring plate rotates around the axis; the stirring plate is disposed on the inner side of the first side, and the drive shaft of the stirring plate passes through the first side and is connected to the second motor disposed on the outer side; the rotating stirring rods are arranged in a ring around the axis and form multiple spaced first stirring rings; The fixed stirring rod is disposed on the inner side of the second side and is arranged in a ring around the central axis, forming multiple spaced second stirring rings. The central axis is collinear with the axis. The first stirring ring and the second stirring ring are distributed alternately.

[0011] Preferably, the fixed stirring rod and the rotating stirring rod are arranged horizontally.

[0012] Preferably, the secondary stirring and stripping mechanism includes a third motor and a secondary stirring shaft driven by the third motor. The secondary stirring shaft is disposed through the secondary stripping container and has multiple radially protruding blades. The third motor is disposed on the outer wall of the secondary stripping container to drive the secondary stirring shaft.

[0013] Preferably, a plurality of blades are arranged around the axis of the secondary stirring shaft to form a blade group, and the plurality of blade groups are arranged at intervals on the secondary stirring shaft.

[0014] Preferably, the dust collection mechanism is a bag filter dust collector, which includes a filter bag, an air outlet, a fifth inlet, and a pulse generating valve disposed above the filter bag. The filter bag is spaced between the air outlet and the fifth inlet, and the pulse generating valve sends pulse air waves to the filter bag.

[0015] Preferably, the bag filter further includes an electrode powder outlet, an electrode powder collection container is provided below the electrode powder outlet, and a butterfly valve is provided on the electrode powder outlet.

[0016] (III) Beneficial Effects This utility model discloses a waste electrode sheet stripping and recycling device. By integrating a crushing component, a stripping component, a separation component, and a collection component into a coherent system, it achieves full automation and integration from waste electrode sheet feeding to the classification and recycling of electrode powder and metal foil, greatly simplifying the operation process and improving the overall recycling efficiency. The entire device operates under negative pressure provided by a negative pressure fan. This design provides power for the automatic material transfer, enabling continuous system operation; furthermore, the sealed environment effectively suppresses dust dispersion, ensuring a clean production environment and avoiding secondary pollution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a waste electrode stripping and recycling device according to the present invention; Figure 2 for Figure 1 A three-dimensional partial cross-sectional view of the primary stripping component; Figure 3 for Figure 1 A three-dimensional schematic diagram of the secondary stripping component in the process; Figure 4 for Figure 1 A schematic diagram of the structure of a baghouse dust collector.

[0018] [Explanation of Labels in the Attached Image] 1: Crushing assembly; 11: Crushing container; 12: Crushing roller; 13: First motor; 2: Stripping component; 21: Primary stripping component; 211: Primary stripping container; 212: Mixing tray; 213: Rotary stirring rod; 214: Fixed stirring rod; 2130: First stirring ring; 2140: Second stirring ring; 215: Second motor; 22: Secondary stripping assembly; 221: Third motor; 222: Secondary stirring shaft; 223: blade; 2230: blade group; 3: Cyclone feeder separator; 31: Separation container; 32: Negative pressure blower; 4: Collection component; 41: Vibrating screen; 42: Baghouse dust collector; 421: Filter bag; 422: Air outlet; 423: Pulse generator valve; 424: Butterfly valve. Detailed Implementation

[0019] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] See Figures 1 to 4 This utility model provides a device for stripping and recycling waste electrode sheets, comprising: a crushing component 1, a stripping component 2, a separation component (not labeled in the figure), and a collection component 4; wherein, The crushing assembly 1 includes a crushing container 11 and a crushing mechanism (not labeled in the figure). The crushing container 11 has a first feed inlet (not labeled in the figure) and a first discharge outlet (not labeled in the figure). The crushing mechanism is disposed inside the crushing container 11 to crush the waste electrode sheets. The stripping assembly 2 includes a primary stripping assembly 21 and a secondary stripping assembly 22; the primary stripping assembly 21 includes a primary stripping container 211 and a primary stirring stripping mechanism (not labeled in the figure) disposed in the primary stripping container 211. The primary stripping container 211 includes a second inlet (not labeled in the figure) and a second outlet (not labeled in the figure). The second inlet is connected to the first outlet. The primary stirring stripping mechanism performs primary stripping of the metal foil and electrode powder of the crushed waste electrode sheet to obtain primary metal foil and electrode powder. The separation assembly includes a cyclone separator 3, which includes a separation container 31 and a negative pressure blower 32. The separation container 31 has a third inlet (not labeled in the figure), a dust outlet (not labeled in the figure), and a third outlet (not labeled in the figure). The third inlet is connected to the second outlet, and the negative pressure blower 32 is connected to the dust outlet. Under the negative pressure blower 32, the electrode powder is output through the dust outlet, and the primary metal foil is output through the third outlet under the action of gravity. The secondary stripping assembly 22 includes a secondary stripping container (not labeled) and a secondary stirring stripping mechanism (not labeled) disposed in the secondary stripping container. The secondary stripping container has a fourth inlet (not labeled) and a fourth outlet (not labeled). The fourth inlet is connected to the third outlet. Through the secondary stirring stripping mechanism, the metal foil of the primary metal foil is stripped from the electrode powder again to obtain a secondary metal foil and electrode powder. The collection component 4 includes a secondary separation component (not labeled in the figure) and a dust collection mechanism (not labeled in the figure); the secondary separation component is connected to the fourth discharge port and is used to separate and recycle the secondary metal foil and the electrode powder; the dust collection mechanism is located between the dust discharge port and the negative pressure fan 32 to recycle the electrode powder.

[0024] In this embodiment, by integrating the crushing component 1, the stripping component 2 (including the primary stripping component 21 and the secondary stripping component 22), the separation component, and the collection component 4 into a coherent system, the entire process from feeding waste electrode sheets to the classification and recycling of electrode powder and metal foil is automated and integrated.

[0025] After the material enters through the first feed inlet, it flows sequentially through the crushing component 1, the primary stripping component 21, the separation component, the secondary stripping component 22, and the collection component 4. The entire process is completed continuously and automatically in a closed system without the need for intermediate manual transfer, which greatly simplifies the operation process and improves the overall recycling efficiency.

[0026] The primary stirring and stripping mechanism performs initial stirring and friction on the pulverized material, achieving preliminary stripping. The incompletely stripped primary metal foil is separated by a cyclone separator and then enters the secondary stirring and stripping mechanism for further, deeper stripping. This two-stage stripping design ensures that the electrode powder is fully and thoroughly separated from the foil, significantly improving recovery rate and product purity.

[0027] The negative pressure environment established by the negative pressure induced draft fan 32 in the entire system not only provides power for the conveying of the extreme powder in the separation components and dust collection mechanism, realizing the automatic flow of materials, but more importantly, the closed negative pressure effectively inhibits the escape of dust in the entire recycling process, ensuring the cleanliness of the production environment and avoiding secondary pollution.

[0028] The separation component utilizes centrifugal force and gravity to achieve the initial separation of the electrode powder and the primary metal foil; the secondary separation component in the collection component 4 performs the final screening of the mixture of secondary metal foil and electrode powder after the second separation. The two-stage separation ensures high-precision separation and separate recovery of metal and electrode powder.

[0029] Preferably, the secondary separation component includes a vibrating screen 41, which is located at the fourth discharge port and is used to vibrate and screen the secondary metal foil and the electrode powder. The vibrating screen 41 uses high-frequency vibration to cause the smaller particle size of the electrode powder to quickly pass through the screen and become the undersize, while the larger particle size of the secondary metal foil is separated as the oversize. This mechanical screening method is highly efficient, energy-saving, and can operate continuously to achieve efficient and fine separation of the secondary metal foil and the electrode powder.

[0030] Preferably, the crushing mechanism includes a first motor 13 and a crushing roller 12 driven by the first motor 13. The crushing roller 12 includes a roller shaft (not labeled in the figure) and several roller blades (not labeled in the figure) disposed on the roller shaft. The roller shaft is disposed through the crushing container 11. The first motor 13 is connected to the roller shaft.

[0031] The crushing roller 12 is driven by the first motor 13 and rotates at low speed and high torque. The roller blades mounted on it squeeze, shear, and tear the waste electrode sheets that enter from the first feed inlet. This mechanical crushing method does not require chemical reagents or high temperatures, and is a green and efficient pretreatment method that provides appropriately sized fragments for the subsequent stripping process.

[0032] Preferably, the primary stirring and stripping mechanism includes a fixed stirring rod 214 disposed on the inner side of the primary stripping container 211 and a rotary stirring assembly (not labeled in the figure); the rotary stirring assembly includes a second motor 215, a stirring disc 212 driven to rotate by the second motor 215, and a plurality of rotary stirring rods 213 disposed on the stirring disc 212; wherein, the fixed stirring rod 214 is disposed outside the stirring path of the rotary stirring rods 213. The primary stirring and stripping mechanism creates a highly efficient frictional stripping zone. The rotating stirring rod 213 rotates at high speed with the stirring disc 212, scattering and agitating the material; the fixed stirring rod 214 remains stationary on the inner wall of the container. This staggered but non-interfering arrangement ensures that the electrode fragments experience intense friction, collision, and shearing between the dynamic rotating stirring rod 213 and the static fixed stirring rod 214, thereby efficiently stripping the electrode powder from the metal foil.

[0033] Preferably, the primary stripping container 211 includes a first side (not labeled) and a second side (not labeled) disposed opposite to each other, the fixed stirring rod 214 is disposed on the second side, and the rotating stirring assembly is disposed on the first side; The stirring plate 212 is coaxially arranged with the output shaft of the second motor 215 so that the stirring plate 212 rotates around the axis; the stirring plate 212 is disposed on the inner side of the first side, and the drive shaft of the stirring plate 212 passes through the first side and is connected to the second motor 215 disposed on the outer side; the rotating stirring rods 213 are arranged in a ring around the axis and form a plurality of spaced first stirring rings 2130; The fixed stirring rod 214 is disposed on the inner side of the second side, and the fixed stirring rod 214 is distributed in a ring around the central axis and forms a plurality of spaced second stirring rings 2140, wherein the central axis is collinear with the axis. The first stirring ring 2130 and the second stirring ring 2140 are distributed alternately.

[0034] The fixed stirring rod 214 and the rotating stirring rod 213 are set horizontally.

[0035] The stirring disc 212, as described above, maximizes the frictional stripping effect. The first stirring ring 2130 and the second stirring ring 2140 are staggered, forming a dense and uniform stirring network on the cross-section of the primary stripping container 211. When the material passes through this area, it is fully stirred and rubbed, avoiding dead zones and ensuring the uniformity and high efficiency of the primary stripping.

[0036] In this embodiment, preferably, the fixed stirring rod 214 and the rotating stirring rod 213 are arranged horizontally.

[0037] The fixed stirring rod 214 and the rotating stirring rod 213 are set horizontally. The material falls from above and, under the action of gravity, is repeatedly lifted and fallen by the rotating stirring rod 213, and then stirs and rubs against the fixed stirring rod 214, which can better increase the peeling effect.

[0038] Preferably, the secondary stirring and stripping mechanism includes a third motor 221 and a secondary stirring shaft 222 driven by the third motor 221. The secondary stirring shaft 222 is disposed through the secondary stripping container, and a plurality of radially arranged blades 223 protrude from the secondary stirring shaft 222. The third motor 221 is disposed on the outer wall of the secondary stripping container to drive the secondary stirring shaft 222.

[0039] The secondary stirring and peeling mechanism is used for deep processing of the primary metal foil. The high-speed rotating secondary stirring shaft 222 drives the blades 223 to vigorously stir, knead, and tumble the material. This action can effectively remove the firmly bonded residual electrode powder adhering to the foil surface, completing the secondary fine peeling.

[0040] Preferably, a plurality of blades 223 are arranged around the axis of the secondary stirring shaft 222 to form a blade group 2230, and the plurality of blade groups 223 are arranged at intervals on the secondary stirring shaft 222.

[0041] By grouping and spacing the blades 223 on the secondary stirring shaft 222 to form blade groups 2230, a gradient stirring intensity can be created, allowing the material to undergo multiple kneading actions of varying intensities during axial movement, resulting in more thorough separation. Simultaneously, this spacing design prevents material accumulation on the shaft, ensuring smooth and efficient stirring and facilitating material transport.

[0042] Preferably, the dust collection mechanism is a bag dust collector 42, which includes a bag 421, an air outlet 422, a fifth feed inlet (not labeled in the figure), and a pulse generating valve 423 disposed above the bag 421. The bag 421 is disposed between the air outlet 422 and the fifth feed inlet, and the pulse generating valve 423 emits pulse air waves to the bag 421 at intervals.

[0043] The baghouse dust collector 42 is a highly efficient gas-solid separation device. Airflow containing electrode powder enters through the fifth inlet. The electrode powder is filtered by the filter bags 421 and adheres to the outer surface of the bags. The purified gas is discharged from the outlet 422. A periodically activated pulse generator valve 423 injects compressed air into the filter bags 421, creating a momentary reverse airflow that shakes the bags, dislodging the electrode powder adhering to them. This achieves automatic and continuous collection of the electrode powder and online cleaning of the filter bags 421, ensuring efficient dust collection.

[0044] Meanwhile, the negative pressure fan 32 is installed on the air outlet 422, so that negative pressure conditions are formed inside all the mechanisms, thus preventing the escape of the polar powder.

[0045] Preferably, the bag filter 42 further includes an electrode powder outlet, an electrode powder collection container is provided below the electrode powder outlet, and a butterfly valve 424 is provided on the electrode powder outlet.

[0046] A butterfly valve 424 is installed at the discharge port of the dust powder. The valve can be closed periodically to collect the dust powder in the bag dust collector 42 without affecting the internal negative pressure of the system. This achieves continuity and sealing of the collection process and prevents dust leakage.

[0047] It should be understood that the above description of the specific embodiments of this utility model is only for illustrating the technical route and features of this utility model, and its purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. However, this utility model is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of this utility model should be covered by the protection scope of this utility model.

Claims

1. A stripping and recycling device for waste electrode sheets, characterized in that, It includes: The components include a crushing component, a stripping component, a separating component, and a collecting component; among which, The pulverizing assembly includes a pulverizing container and a pulverizing mechanism. The pulverizing container has a first inlet and a first outlet. The pulverizing mechanism is disposed inside the pulverizing container to pulverize waste electrode sheets. The stripping assembly includes a primary stripping assembly and a secondary stripping assembly; the primary stripping assembly includes a primary stripping container and a primary stirring stripping mechanism disposed within the primary stripping container; the primary stripping container includes a second inlet and a second outlet, the second inlet being connected to the first outlet; the primary stirring stripping mechanism performs primary stripping of the pulverized waste electrode sheet metal foil and electrode powder to obtain primary metal foil and electrode powder. The separation assembly includes a cyclone feeder separator, which includes a separation container and a negative pressure blower. The separation container has a third feed inlet, a dust outlet, and a third discharge outlet. The third feed inlet is connected to the second discharge outlet. The negative pressure blower is connected to the dust outlet. Under the negative pressure blower, the electrode powder is output through the dust outlet, and the primary metal foil is output through the third discharge outlet under the action of gravity. The secondary stripping assembly includes a secondary stripping container and a secondary stirring stripping mechanism disposed in the secondary stripping container. The secondary stripping container has a fourth inlet and a fourth outlet. The fourth inlet is connected to the third outlet. The secondary stirring stripping mechanism strips the metal foil of the primary metal foil from the electrode powder again to obtain the secondary metal foil and the electrode powder. The collection component includes a secondary separation component and a dust collection mechanism; the secondary separation component is connected to the fourth discharge port and is used to separate and recover the secondary metal foil and the electrode powder; the dust collection mechanism is located between the dust discharge port and the negative pressure fan to recover the electrode powder.

2. The stripping and recycling device as described in claim 1, characterized in that, The secondary separation component includes a vibrating screen, which is located at the fourth discharge port and is used to vibrate and sieve the secondary metal foil and the electrode powder.

3. The stripping and recycling device as described in claim 1, characterized in that, The crushing mechanism includes a first motor and a crushing roller driven by the first motor. The crushing roller includes a roller shaft and several roller blades disposed on the roller shaft. The roller shaft is disposed through the crushing container. The first motor is connected to the roller shaft.

4. The stripping and recycling device as described in claim 1, characterized in that, The primary stirring and stripping mechanism includes a fixed stirring rod disposed on the inner side of the primary stripping container and a rotary stirring assembly; the rotary stirring assembly includes a second motor, a stirring disc driven by the second motor to rotate, and a plurality of rotary stirring rods disposed on the stirring disc; wherein, the fixed stirring rod is disposed outside the stirring path of the rotary stirring rod.

5. The stripping and recycling device as described in claim 4, characterized in that, The primary stripping container includes a first side and a second side disposed opposite to each other, the fixed stirring rod is disposed on the second side, and the rotating stirring assembly is disposed on the first side; The stirring plate is coaxially arranged with the output shaft of the second motor so that the stirring plate rotates around the axis; the stirring plate is disposed on the inner side of the first side, and the drive shaft of the stirring plate passes through the first side and is connected to the second motor disposed on the outer side; the rotating stirring rods are arranged in a ring around the axis and form multiple spaced first stirring rings; The fixed stirring rod is disposed on the inner side of the second side and is arranged in a ring around the central axis, forming multiple spaced second stirring rings. The central axis is collinear with the axis. The first stirring ring and the second stirring ring are distributed alternately.

6. The stripping and recycling apparatus as described in claim 5, characterized in that, The fixed stirring rod and the rotating stirring rod are set horizontally.

7. The stripping and recycling apparatus as described in claim 1, characterized in that, The secondary stirring and stripping mechanism includes a third motor and a secondary stirring shaft driven by the third motor. The secondary stirring shaft is disposed inside the secondary stripping container and has multiple radially protruding blades. The third motor is disposed on the outer wall of the secondary stripping container to drive the secondary stirring shaft.

8. The stripping and recycling apparatus as described in claim 7, characterized in that, Multiple blades are arranged around the axis of the secondary stirring shaft to form a blade group, and the multiple blade groups are arranged at intervals on the secondary stirring shaft.

9. The stripping and recycling apparatus as described in claim 1, characterized in that, The dust collection mechanism is a bag filter dust collector, which includes a filter bag, an air outlet, a fifth inlet, and a pulse generating valve disposed above the filter bag. The filter bag is positioned between the air outlet and the fifth inlet, and the pulse generating valve sends pulse air waves to the filter bag.

10. The stripping and recycling apparatus as described in claim 9, characterized in that, The bag filter dust collector also includes an electrode powder outlet, and an electrode powder collection container is provided below the electrode powder outlet. A butterfly valve is also provided on the electrode powder outlet.

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