A device for rapid heating of electrode materials of retired lithium-ion batteries

Abstract

The utility model relates to the field of electromagnetic heating equipment, concretely relates to a device of quick heating to the electrode material of retired lithium ion battery, including base, the base top places the heating furnace, the heating furnace top buckle has the apron, is established to the protection gas injection hole on the apron still, including the electric heating assembly and waste gas purification subassembly for heating the heating furnace, the electric heating assembly sets up one side of the heating furnace, waste gas purification subassembly and apron pipeline connection, the utility model's beneficial effect is: in having to the electrode material of retired lithium ion battery quick heating function while, can also very good realization to the purification treatment of the organic waste gas produced in the electrode material heating process of retired lithium ion battery, protect the workshop environment while, also be favorable to the respiratory health of operating personnel, suitable for promotion and use.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic heating equipment, specifically to a device for rapidly heating electrode materials of retired lithium-ion batteries. Background Technology

[0002] Retired lithium-ion batteries contain a large amount of valuable metal resources, such as cobalt, nickel, manganese, and lithium. Mining these metals is costly and poses potential environmental hazards. Especially in my country, key metal resources like cobalt and nickel are relatively scarce, and domestic reserves are insufficient to meet the growing market demand. The cathode materials from spent lithium-ion batteries, due to their high content of precious metals, have significant recycling value and have become a focus of research and industry attention. Recycling these resources can not only reduce dependence on raw mineral resources but also lower the overall production cost of lithium-ion batteries, contributing to the sustainable development of the new energy vehicle and energy storage industries.

[0003] While existing recycling devices for heating electrode materials from retired lithium-ion batteries can achieve the function of heating the materials, the slow heating process can easily cause other reactions, accumulation, and passivation of the active sites of the positive electrode material during long-term heating, which is not conducive to subsequent reuse. Traditional heating methods such as resistance furnaces can also produce toxic and harmful gases and pungent odors due to the volatilization of electrolytes, binders, and other fluorides and organic components in the electrode materials. This not only pollutes the workshop environment but also harms the respiratory health of the workers. Further improvements are needed.

[0004] Therefore, it is necessary to invent a device for rapidly heating electrode materials of retired lithium-ion batteries. Utility Model Content

[0005] Therefore, this utility model provides a device for rapidly heating electrode materials of retired lithium-ion batteries. This addresses the problem that while existing devices for heating electrode materials of retired lithium-ion batteries can achieve the function of heating the materials, the slow heating process can easily cause other reactions, accumulation, and passivation of the active sites of the positive electrode material during long-term heating, which is not conducive to subsequent reuse. At the same time, it will produce the volatilization of fluorides and organic components. If these are not collected and treated, they will pollute the workshop environment and also be detrimental to the respiratory health of the workers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for rapidly heating electrode materials of retired lithium-ion batteries, comprising a base, a heating furnace placed on top of the base, a cover plate fastened to the top of the heating furnace, a protective gas injection hole opened on the cover plate, and further comprising an electric heating component and an exhaust gas purification component for heating the heating furnace, wherein the electric heating component is disposed on one side of the heating furnace, and the exhaust gas purification component is connected to the cover plate pipe.

[0007] Preferably, the electric heating assembly includes a high-frequency induction power supply, which is placed on one side of the base. An induction coil is fixed on one side of the high-frequency induction power supply, and the high-frequency induction power supply is electrically connected to the induction coil. The heating furnace is placed inside the induction coil.

[0008] Preferably, the electric heating assembly further includes a thermocouple insertion hole, which is opened on the cover plate. A temperature sensor is fixed through the thermocouple insertion hole, and the bottom end of the temperature sensor is located inside the heating furnace.

[0009] Preferably, the exhaust gas purification component includes an exhaust gas discharge hole, which is opened on the cover plate, and an exhaust gas discharge pipe is fixed through the exhaust gas discharge hole.

[0010] Preferably, a raised seat is placed on one side of the base, a suction fan is fixed on the top of the raised seat, a suction pipe is fixedly connected to the input end of the suction fan, the end of the suction pipe is fixedly connected to the end of the exhaust gas discharge pipe, and an exhaust gas delivery pipe is fixedly connected to the output end of the suction fan.

[0011] Preferably, the exhaust gas purification component further includes an absorption tank, the inside of which is filled with an absorbent.

[0012] Preferably, the end of the waste gas conveying pipe passes through the bottom of the side end of the fixed absorption tank, and the end of the waste gas conveying pipe is fixedly connected to an exhaust pipe.

[0013] Preferably, the top of the absorption tank is threaded with a tank cover, the tank cover has an exhaust hole, and a dustproof net is fixed inside the exhaust hole.

[0014] The beneficial effects of this utility model are: by using the base, heating furnace, cover plate, protective gas injection hole, electric heating component and exhaust gas purification component together, it can not only quickly heat the electrode material of retired lithium-ion batteries to avoid the reduction of the activity of the positive electrode material, but also effectively purify the organic waste gas generated during the heating process of retired lithium-ion battery electrode materials, protect the workshop environment, and benefit the respiratory health of the workers, making it suitable for widespread use. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the present invention; Figure 2 This is a top view of the structure of the electric heating assembly provided by this utility model; Figure 3 A schematic diagram of the structure of the heating furnace provided by this utility model; Figure 4 A top view of the structure of the heating furnace provided by this utility model; Figure 5A schematic diagram of the structure of the high-frequency induction power supply provided by this utility model.

[0016] In the diagram: 1. Base; 2. Heating furnace; 3. Cover plate; 4. Protective gas injection hole; 5. High-frequency induction power supply; 6. Induction coil; 7. Coupling insertion hole; 8. Temperature sensor; 9. Exhaust gas discharge hole; 10. Exhaust gas discharge pipe; 11. Elevated seat; 12. Suction fan; 13. Suction pipe; 14. Exhaust gas delivery pipe; 15. Absorption tank; 16. Absorbent; 17. Exhaust pipe; 18. Tank cover; 19. Exhaust port; 20. Dustproof net. Detailed Implementation

[0017] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0018] Please refer to the appendix. Figures 1-5 The present invention provides a device for rapidly heating electrode materials of retired lithium-ion batteries, including a base 1, a heating furnace 2 placed on the top of the base 1, the heating furnace 2 can be set as a graphite (iron, nickel) crucible, a cover plate 3 fastened to the top of the heating furnace 2, a protective gas injection hole 4 opened on the cover plate 3, and also includes an electric heating component and an exhaust gas purification component for heating the heating furnace 2, the electric heating component is set on one side of the heating furnace 2, and the exhaust gas purification component is connected to the cover plate 3 by a pipe. The electric heating assembly includes a high-frequency induction power supply 5, which is placed on one side of the base 1. An induction coil 6 is fixed on one side of the high-frequency induction power supply 5. The high-frequency induction power supply 5 is electrically connected to the induction coil 6. The heating furnace 2 is placed inside the induction coil 6 and is used to heat the heating furnace 2, thereby rapidly heating the retired lithium-ion battery electrode materials placed inside the heating furnace 2. The electric heating assembly also includes a thermocouple insertion hole 7, which is opened on the cover plate 3. A temperature sensor 8 is fixed through the thermocouple insertion hole 7. The bottom end of the temperature sensor 8 is located inside the heating furnace 2 and can be used to monitor the furnace temperature in the heating furnace 2 in real time. The exhaust gas purification component includes an exhaust gas discharge port 9, which is opened on the cover plate 3. An exhaust gas discharge pipe 10 is fixedly connected through the exhaust gas discharge port 9. A raised seat 11 is placed on one side of the base 1. A suction fan 12 is fixedly fixed on the top of the raised seat 11. A suction pipe 13 is fixedly connected to the input end of the suction fan 12. The end of the suction pipe 13 is fixedly connected to the end of the exhaust gas discharge pipe 10. An exhaust gas conveying pipe 14 is fixedly connected to the output end of the suction fan 12. Specifically, when the suction fan 12 is running, it can suck out the organic waste gas (fluoride and volatile organic compounds) generated in the heating furnace 2 through the suction pipe 13 and the exhaust gas discharge pipe 10, and then convey it through the exhaust gas conveying pipe 14. The exhaust gas purification assembly also includes an absorption tank 15, which is filled with an absorbent 16. The absorbent 16 is preferably a defluorinating agent and an aqueous absorbent. The end of the exhaust gas conveying pipe 14 passes through and is fixed to the bottom of the side of the absorption tank 15, and the end of the exhaust gas conveying pipe 14 is fixedly connected to an exhaust pipe 17. The top of the absorption tank 15 is threaded with a tank cover 18, and an exhaust hole 19 is opened on the tank cover 18. A dustproof net 20 is fixed inside the exhaust hole 19. Specifically, the organic waste gas generated during the heating of the retired lithium-ion battery electrode materials in the heating furnace 2 can be conveyed through the exhaust gas conveying pipe 14 to the exhaust pipe 17 and discharged into the absorbent 16 in the absorption tank 15, thereby being effectively purified. The purified gas can be discharged through the exhaust hole 19. The tank cover 18 is easy to disassemble and install, so that the absorbent 16 can be easily added or replaced. In summary, this device not only heats the electrode materials of retired lithium-ion batteries, but also effectively purifies the organic waste gas generated during the heating process, protecting the workshop environment and benefiting the respiratory health of workers.

[0019] The usage process of this utility model is as follows: When in use, the operator puts the retired lithium-ion battery electrode material to be heated into the heating furnace 2, and then starts the high-frequency induction power supply 5 and the suction fan 12. When the high-frequency induction power supply 5 is running, it can start heating the heating furnace 2 through the induction coil 6, thereby rapidly heating the retired lithium-ion battery electrode material placed in the heating furnace 2. When the suction fan 12 is running, it can suck out the organic waste gas generated in the heating furnace 2 through the suction pipe 13 and the waste gas discharge pipe 10, and then transport it through the waste gas conveying pipe 14 to the exhaust pipe 17 and discharge it into the absorbent 16 in the absorption tank 15, thereby being effectively purified. The purified gas can be discharged through the exhaust port 19.

[0020] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art can modify this utility model or modify it into an equivalent technical solution using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solution of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A device for rapidly heating electrode materials of retired lithium-ion batteries, comprising a base (1), a heating furnace (2) placed on top of the base (1), a cover plate (3) fastened to the top of the heating furnace (2), and a protective gas injection hole (4) provided on the cover plate (3), characterized in that: It also includes an electric heating component and an exhaust gas purification component for heating the heating furnace (2), wherein the electric heating component is disposed on one side of the heating furnace (2) and the exhaust gas purification component is connected to the cover plate (3) via a pipe.

2. The device for rapidly heating electrode materials of retired lithium-ion batteries according to claim 1, characterized in that: The electric heating assembly includes a high-frequency induction power supply (5), which is placed on one side of the base (1). An induction coil (6) is fixed on one side of the high-frequency induction power supply (5). The high-frequency induction power supply (5) is electrically connected to the induction coil (6). The heating furnace (2) is placed inside the induction coil (6).

3. The device for rapidly heating electrode materials of retired lithium-ion batteries according to claim 2, characterized in that: The electric heating assembly also includes a thermocouple insertion hole (7), which is opened on the cover plate (3). A temperature sensor (8) is fixed through the thermocouple insertion hole (7), and the bottom end of the temperature sensor (8) is located inside the heating furnace (2).

4. The device for rapidly heating electrode materials of retired lithium-ion batteries according to claim 1, characterized in that: The exhaust gas purification component includes an exhaust gas discharge hole (9), which is opened on the cover plate (3), and an exhaust gas discharge pipe (10) is fixed through the exhaust gas discharge hole (9).

5. The device for rapidly heating electrode materials of retired lithium-ion batteries according to claim 4, characterized in that: A raised seat (11) is placed on one side of the base (1). A suction fan (12) is fixed on the top of the raised seat (11). A suction pipe (13) is fixedly connected to the input end of the suction fan (12). The end of the suction pipe (13) is fixedly connected to the end of the exhaust pipe (10). An exhaust gas conveying pipe (14) is fixedly connected to the output end of the suction fan (12).

6. The device for rapidly heating electrode materials of retired lithium-ion batteries according to claim 5, characterized in that: The exhaust gas purification assembly also includes an absorption tank (15), which is filled with an absorbent (16).

7. The device for rapidly heating electrode materials of retired lithium-ion batteries according to claim 6, characterized in that: The end of the exhaust gas conveying pipe (14) passes through the bottom of the side end of the fixed absorption tank (15), and the end of the exhaust gas conveying pipe (14) is fixedly connected to the exhaust pipe (17).

8. The device for rapidly heating electrode materials of retired lithium-ion batteries according to claim 7, characterized in that: The top of the absorption tank (15) is threaded with a tank cover (18), and the tank cover (18) has an exhaust hole (19), and a dustproof net (20) is fixed inside the exhaust hole (19).

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