Inverted scraper conveyor for recycling lithium batteries

Abstract

The utility model discloses an inverted scraper conveyor for recycling lithium batteries. A plurality of scrapers are uniformly connected to the periphery of a transmission chain; the guide plate is located in the shell assembly, fixedly connected with a lower side bottom plate of the shell assembly through a lower side support, in contact fit with the lower portion of the transmission chain located on the lower side and used for guiding the transmission chain. The baffle is located in the upper side space in the shell assembly and located in the area below the feeding port, the outer side end edge of the baffle is fixedly connected with a side end plate of the shell assembly, and the baffle is located on the upper portion of the transmission chain on the upper side and used for preventing falling materials from entering the transmission chain. The filling port and the extraction port are formed in a side end plate of the shell assembly in a spaced mode, an air inlet one-way valve is installed in the filling port, and an air outlet one-way valve is installed in the extraction port. The conveyor can meet the requirement for material conveying in the lithium battery recycling process, the probability of clamping stagnation can be remarkably reduced, the conveying efficiency can be remarkably improved, and the maintenance frequency can be effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of waste lithium battery recycling technology, specifically relating to an inverted scraper conveyor for lithium battery recycling. Background Technology

[0002] In traditional material handling, scraper conveyors typically use an upper carrying section to transport materials. This is the method used in existing scraper conveyors for transporting conventional materials such as coal and grain. However, this upper carrying section method is not suitable for the specific needs of the lithium battery recycling industry. When conveying broken lithium batteries using a traditional upper carrying section, 20-40mm pieces of sheet plastic and metal casing easily get stuck in the scraper gaps or even in the transmission components. This material jamming problem leads to increased equipment failure rates and maintenance frequency, resulting in low material conveying efficiency. Furthermore, existing conveyors lack effective protective designs, making lithium battery materials susceptible to reaction with oxygen during transport, potentially causing combustion and explosion accidents. Therefore, there is an urgent need for a new type of scraper conveyor suitable for lithium battery recycling. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides an inverted scraper conveyor for lithium battery recycling. This conveyor has a simple structure, high safety factor, good stability, and high reliability. It can meet the material conveying needs in the lithium battery recycling process. At the same time, it can significantly reduce the probability of jamming, significantly improve conveying efficiency, and effectively reduce maintenance frequency. It can effectively solve a series of problems existing in the application of existing scraper conveyors in lithium battery recycling, such as material jamming, unstable operation, and significant safety hazards.

[0004] To achieve the above objectives, this utility model provides an inverted scraper conveyor for lithium battery recycling. The inverted scraper conveyor includes a housing assembly, a drive sprocket, an auxiliary sprocket, a transmission chain, scrapers, guide plates, baffles, a filling port, and an exhaust port. The housing assembly is a sealed box-type structure, which is composed of a lower horizontal section, an inclined section, and an upper horizontal section that are sequentially and sealed together. The drive sprocket is rotatably installed inside the upper horizontal section, and the auxiliary sprocket is rotatably installed inside the lower horizontal section. The transmission chain is wound around and connected to the outside of the drive sprocket and the auxiliary sprocket.

[0005] Multiple scrapers are located inside the housing assembly and are evenly distributed around the drive chain. The length of each scraper extends along the width of the housing assembly, and its end away from the housing assembly is fixedly connected to the drive chain. Driven by the drive chain, the end of the scraper near the housing assembly is spaced and engaged with the lower bottom plate of the housing assembly to scrape the lithium battery material on the lower bottom plate of the housing assembly to the discharge port.

[0006] The guide plate is located inside the housing assembly. The guide plate is fixedly connected to the lower bottom plate of the housing assembly through the lower bracket and is in contact with the lower part of the transmission chain located on the lower side to provide guidance to the transmission chain.

[0007] The baffle is located in the upper space inside the housing assembly and in the area below the feed inlet. The outer end of the baffle is fixedly connected to the side end plate of the housing assembly, and the baffle is located above the upper part of the transmission chain to prevent the material from falling into the transmission chain.

[0008] The filling port and the exhaust port are alternately provided on the side end plate of the housing assembly, and an air inlet check valve is installed in the filling port and an air outlet check valve is installed in the exhaust port.

[0009] Furthermore, to effectively reduce the occurrence of jamming in the transmission mechanism, the feed inlet is a small-sized inlet located in the central area of ​​the lower horizontal section. By making the size of the feed inlet smaller than that of a conventional feed inlet, and in conjunction with the baffle, it is possible to further prevent material from falling into the transmission chain.

[0010] Furthermore, in order to facilitate real-time monitoring of oxygen concentration data inside the housing assembly, an oxygen content monitoring module is also included. The oxygen content monitoring module is installed inside the housing assembly and is used to collect oxygen concentration data inside the housing assembly in real time.

[0011] Furthermore, in order to facilitate the injection of nitrogen into the inner cavity of the housing assembly during material conveying, a nitrogen injection mechanism is also included, wherein the outlet end of the nitrogen injection mechanism is connected to the injection port.

[0012] Furthermore, in order to facilitate the simultaneous extraction of internal gas to the outside during the nitrogen filling process, so as to maintain a negative pressure state in the inner cavity of the shell assembly during transportation and to ensure the safety of transportation to the greatest extent, a negative pressure pump is also included, the air inlet of which is connected to the air extraction port through an air extraction pipeline.

[0013] In this invention, multiple scrapers are evenly connected around the circumference of the drive chain, with the lower ends of the scrapers spaced apart from the lower bottom plate of the housing assembly. The lower bottom plate of the housing assembly carries the lithium battery material to be conveyed. Simultaneously, the multiple scrapers, moving with the main scraper, transport the lithium battery material on the lower bottom plate of the housing assembly from the inlet to the outlet. This allows for the conveying of lithium battery material through the inverted scrapers and the lower bottom plate of the housing assembly. A guide plate is installed at the bottom of the housing assembly using a lower bracket, contacting the lower part of the drive chain. This not only guides the drive chain but also reduces the gap between the bottom of the drive chain and the lower bottom plate of the housing assembly. This significantly reduces the probability of debris entering the drive chain, greatly decreasing the likelihood of chain jamming and ensuring conveying efficiency. Furthermore, it significantly reduces the maintenance frequency of the scraper conveyor. By installing a baffle above the drive chain in the area below the feed inlet, the baffle can shield the drive chain during feeding, effectively preventing material from falling directly into the drive chain or into other non-conveying areas. This further ensures conveying efficiency and reduces the frequency of conveyor maintenance. By providing a filling port and an extraction port on the housing assembly, nitrogen can be easily added to the inner cavity of the housing assembly through the filling port, while the gas can be simultaneously extracted from the inner cavity of the housing assembly through the extraction port. This ensures that the inner cavity of the housing assembly is filled with nitrogen, greatly reducing the oxygen concentration and maintaining a negative pressure state within the inner cavity. This prevents oxidation reactions between materials and oxygen during conveying, and even avoids accidents such as combustion and explosion. Installing an inlet check valve in the filling port and an outlet check valve in the extraction port ensures the sealing performance of the inner cavity of the housing assembly and facilitates reliable nitrogen filling and convenient extraction of internal gas. This invention replaces the traditional method of material transport using a conveyor belt with an inverted conveying method using a drive chain to drive scrapers. This allows materials to be transported along the lower surface of the housing assembly, avoiding the problem of materials getting stuck in the drive chain or other transmission components during transport. This conveyor has a simple structure, high safety factor, good stability, and high reliability. It can meet the material transport requirements in lithium battery recycling processes. At the same time, it significantly reduces the probability of jamming, significantly improves conveying efficiency, and effectively reduces maintenance frequency. It effectively solves a series of problems existing in existing scraper conveyors used in lithium battery recycling applications, such as material jamming, unstable operation, and significant safety hazards. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2This is a schematic diagram of the assembly of the transmission chain, scraper, and lower bottom plate of the housing assembly in this utility model.

[0016] Figure 3 This is an assembly diagram of the guide plate and the transmission chain in this utility model;

[0017] Figure 4 This is an assembly diagram of the baffle and the transmission chain in this utility model;

[0018] Figure 5 This is a schematic diagram showing the location of the air extraction port in this utility model.

[0019] In the diagram: 1. Housing assembly, 2. Lower horizontal section, 3. Inclined section, 4. Upper horizontal section, 5. Drive chain, 6. Scraper, 7. Auxiliary sprocket, 8. Scraper, 9. Guide plate, 10. Air extraction port, 11. Feed inlet, 12. Baffle, 13. Lower support. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 5 As shown, the present invention provides an inverted scraper conveyor for lithium battery recycling. The inverted scraper conveyor includes a housing assembly 1, a drive sprocket, an auxiliary sprocket 7, a transmission chain 5, a scraper 8, a guide plate 9, a baffle 12, a filling port, and an exhaust port 10. The housing assembly 1 is a sealed box structure, which is composed of a lower horizontal section 2, an inclined section 3, and an upper horizontal section 4 connected in a sealed manner in sequence. The drive sprocket is rotatably installed inside the upper horizontal section 4, and the auxiliary sprocket 7 is rotatably installed inside the lower horizontal section 2. The transmission chain 5 is wound around and connected to the outside of the drive sprocket and the auxiliary sprocket 7.

[0022] Multiple scrapers 8 are located inside the housing assembly 1 and are evenly distributed around the drive chain 5. The length direction of each scraper 8 extends along the width direction of the housing assembly 1, and its end away from the housing assembly 1 is fixedly connected to the drive chain 5. Driven by the drive chain 5, the end of the scraper 8 close to the housing assembly 1 is spaced and engaged with the lower bottom plate of the housing assembly 1 to scrape the lithium battery material on the lower bottom plate of the housing assembly 1 to the discharge port.

[0023] The guide plate 9 is located inside the housing assembly 1. The guide plate 9 is fixedly connected to the lower bottom plate of the housing assembly 1 via the lower bracket 13 and is in contact with the lower part of the transmission chain 5 located on the lower side, and is used to provide guidance to the transmission chain 5.

[0024] The baffle 12 is located in the upper space inside the housing assembly 1 and in the area below the feed inlet 11. The outer end of the baffle 12 is fixedly connected to the side end plate of the housing assembly 1, and the baffle 12 is located above the upper part of the transmission chain 5 to prevent the material from falling into the transmission chain 5.

[0025] The filling port and the extraction port 10 are spaced apart on the side end plate of the housing assembly 1, and an air inlet check valve is installed in the filling port and an air outlet check valve is installed in the extraction port 10.

[0026] To effectively reduce the occurrence of jamming in the transmission mechanism, the feed inlet 11 is a small-sized feed inlet located in the central area of ​​the lower horizontal section 2. By making the size of the feed inlet smaller than that of a conventional feed inlet, and in conjunction with the setting of a baffle, it is possible to further prevent material from falling into the transmission chain.

[0027] To facilitate real-time monitoring of oxygen concentration data within the housing assembly, an oxygen content monitoring module is also included. This module is installed inside the housing assembly 1 and is used to collect real-time oxygen concentration data within the housing assembly 1.

[0028] To facilitate the injection of nitrogen into the inner cavity of the housing assembly during material conveying, a nitrogen injection mechanism is also included, wherein the outlet end of the nitrogen injection mechanism is connected to the injection port.

[0029] To facilitate the simultaneous extraction of internal gas to the outside during nitrogen filling, thereby maintaining a negative pressure state within the inner cavity of the housing assembly during transportation and maximizing safety during transport, a negative pressure pump is also included. The air inlet of the negative pressure pump is connected to the air extraction port 10 via an air extraction pipeline.

[0030] In this invention, multiple scrapers are evenly connected around the circumference of the drive chain, with the lower ends of the scrapers spaced apart from the lower bottom plate of the housing assembly. The lower bottom plate of the housing assembly carries the lithium battery material to be conveyed. Simultaneously, the multiple scrapers, moving with the main scraper, transport the lithium battery material on the lower bottom plate of the housing assembly from the inlet to the outlet. This allows for the conveying of lithium battery material through the inverted scrapers and the lower bottom plate of the housing assembly. A guide plate is installed at the bottom of the housing assembly using a lower bracket, contacting the lower part of the drive chain. This not only guides the drive chain but also reduces the gap between the bottom of the drive chain and the lower bottom plate of the housing assembly. This significantly reduces the probability of debris entering the drive chain, greatly decreasing the likelihood of chain jamming and ensuring conveying efficiency. Furthermore, it significantly reduces the maintenance frequency of the scraper conveyor. By installing a baffle above the drive chain in the area below the feed inlet, the baffle can shield the drive chain during feeding, effectively preventing material from falling directly into the drive chain or into other non-conveying areas. This further ensures conveying efficiency and reduces the frequency of conveyor maintenance. By providing a filling port and an extraction port on the housing assembly, nitrogen can be easily added to the inner cavity of the housing assembly through the filling port, while the gas can be simultaneously extracted from the inner cavity of the housing assembly through the extraction port. This ensures that the inner cavity of the housing assembly is filled with nitrogen, greatly reducing the oxygen concentration and maintaining a negative pressure state within the inner cavity. This prevents oxidation reactions between materials and oxygen during conveying, and even avoids accidents such as combustion and explosion. Installing an inlet check valve in the filling port and an outlet check valve in the extraction port ensures the sealing performance of the inner cavity of the housing assembly and facilitates reliable nitrogen filling and convenient extraction of internal gas. This invention replaces the traditional method of material transport using a conveyor belt with an inverted conveying method using a drive chain to drive scrapers. This allows materials to be transported along the lower surface of the housing assembly, avoiding the problem of materials getting stuck in the drive chain or other transmission components during transport. This conveyor has a simple structure, high safety factor, good stability, and high reliability. It can meet the material transport requirements in lithium battery recycling processes. At the same time, it significantly reduces the probability of jamming, significantly improves conveying efficiency, and effectively reduces maintenance frequency. It effectively solves a series of problems existing in existing scraper conveyors used in lithium battery recycling applications, such as material jamming, unstable operation, and significant safety hazards.

Claims

1. An inverted scraper conveyor for lithium battery recycling, the inverted scraper conveyor comprising a housing assembly (1), a drive sprocket, an auxiliary sprocket (7), and a drive chain (5), wherein the housing assembly (1) is a sealed box structure, which is composed of a lower horizontal section (2), an inclined section (3), and an upper horizontal section (4) sequentially and sealed together; the drive sprocket is rotatably mounted inside the upper horizontal section (4); the auxiliary sprocket (7) is rotatably mounted inside the lower horizontal section (2); and the drive chain (5) is wound around the outside of the drive sprocket and the auxiliary sprocket (7); characterized in that, It also includes a scraper (8), a guide plate (9), a baffle (12), an injection port, and an air extraction port (10); Multiple scrapers (8) are located inside the housing assembly (1) and are evenly distributed around the drive chain (5). The length direction of each scraper (8) extends along the width direction of the housing assembly (1), and its end away from the housing assembly (1) is fixedly connected to the drive chain (5). Driven by the drive chain (5), the end of the scraper (8) close to the housing assembly (1) is spaced and matched with the lower bottom plate of the housing assembly (1) to scrape the lithium battery material on the lower bottom plate of the housing assembly (1) to the discharge port. The guide plate (9) is located inside the housing assembly (1). The guide plate (9) is fixedly connected to the lower bottom plate of the housing assembly (1) through the lower bracket (13) and is in contact with the lower part of the transmission chain (5) located on the lower side to provide guidance to the transmission chain (5). The baffle (12) is located in the upper space inside the housing assembly (1) and in the area below the feed inlet (11). The outer end of the baffle (12) is fixedly connected to the side end plate of the housing assembly (1), and the baffle (12) is located on the upper part of the upper transmission chain (5) to prevent the material from falling into the transmission chain (5). The filling port and the exhaust port (10) are spaced apart on the side end plate of the housing assembly (1), and an air inlet check valve is installed in the filling port and an air outlet check valve is installed in the exhaust port (10).

2. The inverted scraper conveyor for lithium battery recycling according to claim 1, characterized in that, The feed inlet (11) is a small-sized feed inlet located in the central region of the lower horizontal section (2).

3. An inverted scraper conveyor for lithium battery recycling according to claim 1 or 2, characterized in that, It also includes an oxygen content monitoring module, which is installed inside the housing assembly (1) and is used to collect oxygen concentration data inside the housing assembly (1) in real time.

4. The inverted scraper conveyor for lithium battery recycling according to claim 3, characterized in that, It also includes a nitrogen filling mechanism, the outlet of which is connected to the filling port.

5. An inverted scraper conveyor for lithium battery recycling according to claim 4, characterized in that, It also includes a negative pressure pump, the air inlet of which is connected to the air extraction port (10) via an air extraction pipeline.

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