Gas powder collecting system applied to lithium battery recycling

Abstract

The utility model discloses a gas and powder collecting system applied to lithium battery recycling, which comprises a gas and powder collecting pipeline, a material sucking head is arranged at the feeding end of the gas and powder collecting pipeline, and the discharging end of the gas and powder collecting pipeline is sequentially connected with a negative pressure dust collecting assembly and a powder collecting box. A discharging port of the negative pressure dust collecting assembly is connected with a powder collecting box, the gas-powder collecting pipeline comprises a main collecting pipeline, a plurality of secondary collecting pipelines are communicated with the main collecting pipeline in parallel, a gas-powder collecting port is formed in the material sucking head, and gas powder at the gas-powder collecting port is collected into the powder collecting box under the action of the negative pressure dust collecting assembly. The gas powder collecting system can be used for collecting gas powder generated by equipment in multiple processes of lithium battery recycling in a centralized manner.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery recycling processing technical field especially, relates to a gas powder collection system for lithium battery recycling. BACKGROUND

[0002] In the recycling process of lithium batteries, a large amount of gas powder is generated, which mainly comes from the disassembly, crushing, sorting and other processes of lithium batteries. Due to the complexity of the internal structure of lithium batteries and the diversity of materials, the gas powder generated in these processes often contains valuable metal components such as lithium, cobalt and nickel, and may also contain some harmful substances. Therefore, effective collection and treatment of the gas powder generated in the recycling process of lithium batteries not only helps resource recycling, but also reduces environmental pollution.

[0003] The traditional gas powder collection method often uses a single collection pipeline. This method has low collection efficiency and is difficult to cope with gas powder generated in multiple processes. In addition, due to the different amounts and properties of gas powder generated in each process, it is difficult to effectively separate and collect gas powder of different properties with a single collection pipeline. Therefore, in practical applications, the traditional gas powder collection method often has the problems of incomplete collection, resource waste and environmental pollution.

[0004] In order to solve the above problems, a system capable of efficiently and flexibly collecting gas powder generated in multiple processes in the recycling process of lithium batteries is needed. The system should be able to collect and process the gas powder generated in different processes according to the amount and properties of the gas powder, in order to improve resource recycling rate and reduce environmental pollution. SUMMARY

[0005] The utility model aims at overcoming the problems in the prior art, and provides a gas powder collection system for lithium battery recycling, which can efficiently and centrally collect and process gas powder generated in multiple processes in the recycling process of lithium batteries.

[0006] The utility model is implemented by the following technical scheme: a gas powder collection system for lithium battery recycling, comprising a gas powder collection pipeline, a suction head is arranged at the inlet end of the gas powder collection pipeline, a negative pressure dust collection assembly and a powder collection tank are connected in sequence at the outlet end of the gas powder collection pipeline, the outlet of the negative pressure dust collection assembly is connected to the powder collection tank, the gas powder collection pipeline comprises a main collection pipeline, a plurality of secondary collection pipelines are connected in parallel to the main collection pipeline, a gas powder collection port is arranged on the suction head, and the gas powder at the gas powder collection port is collected into the powder collection tank under the action of the negative pressure dust collection assembly.

[0007] In order to further optimize the utility model, the following technical scheme can be preferred:

[0008] Preferably, the main collecting pipeline and the secondary collecting pipeline are spliced by multiple unit pipelines, and flanges are arranged at splicing positions of the unit pipelines.

[0009] Preferably, the secondary collecting pipeline is laid on the ground through a support frame, the gas-powder collecting ports are arranged on the secondary collecting pipeline and open upwards, and the gas-powder collecting ports are provided with multiple gas-powder collecting ports.

[0010] Preferably, the negative pressure dust collecting assembly comprises, from top to bottom, an air drafter and a material collector, a spiral air duct is arranged at a top position in the material collector, one end of the spiral air duct is in communication with an inner chamber of the material collector, the other end of the spiral air duct is in communication with the main collecting pipeline, the air drafter is arranged at the top of the material collector, a suction port of the air drafter is in communication with the inner chamber of the material collector, and an air outlet of the air drafter is connected with a dust removal device.

[0011] Preferably, a tapered connecting pipe is arranged at a connecting position between the spiral air duct and the main collecting pipeline, and a pipe diameter of the tapered connecting pipe linearly increases along a flow direction.

[0012] Preferably, a control valve and an air supplementing port are arranged on the material suction head.

[0013] Preferably, the powder collecting tank is a tapered tank, a vibrator is arranged on an outer side wall of the powder collecting tank, suspension frames are arranged at four corner positions at the top of the powder collecting tank, and a weighing sensor is arranged on each suspension frame corresponding to a suspension position of the powder collecting tank.

[0014] Compared with the traditional gas-powder collecting mode, the gas-powder collecting system applied to lithium battery recycling has remarkable beneficial effects, which are embodied in the following aspects.

[0015] (1) High-efficiency centralized collection: By designing the structure of the main collecting pipeline in parallel with multiple secondary collecting pipelines, the system can realize high-efficiency and centralized collection of gas powder generated in multiple process equipment during lithium battery recycling. This design not only improves the collection efficiency, but also ensures that the gas powder generated in each process can be collected in time and effectively, avoiding waste of resources and environmental pollution.

[0016] (2) Strong flexibility and adaptability: Since the secondary collecting pipeline can be flexibly arranged on different process equipment and the number and position of the gas-powder collecting ports can be adjusted according to actual needs, the system has strong adaptability. It can adapt to lithium battery recycling production lines of different scales and different process flows, and meet the gas-powder collecting needs in different scenes.

[0017] (3) High resource recycling rate: through the action of the negative pressure dust collection component, the gas powder is effectively collected into the powder collection bin. This not only reduces the drifting and waste of gas powder, but also provides convenience for subsequent resource recycling. Since the gas powder contains valuable metal components, the application of the system helps to improve the resource recycling rate.

[0018] (4) Good environmental protection effect: the system collects gas powder efficiently, reducing the pollution of gas powder to the environment. At the same time, since the gas powder is collected and processed, it also reduces the noise and dust pollution to the surrounding environment, meeting the environmental protection requirements.

[0019] (5) Low maintenance cost: the structure of the system is reasonably designed, easy to maintain and maintain. The connection between each component is tight and reliable, reducing the possibility of failure. In addition, since the system has a high degree of automation, it can reduce the cost and difficulty of manual operation.

[0020] In summary, the gas powder collection system has the advantages of efficient and centralized collection, strong adaptability, high resource recycling rate, good environmental protection effect, and low maintenance cost, which is of great significance to the sustainable development of the lithium battery recycling industry. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of the gas powder collection system;

[0022] Figure 2 is a schematic diagram of the structure of the gas powder collection pipeline;

[0023] Figure 3 is a schematic diagram of the three-dimensional structure of the negative pressure dust collection component;

[0024] Figure 4 is a schematic diagram of the internal connection of the negative pressure dust collection component and the powder collection bin.

[0025] Wherein: 1-main collection pipeline; 2-suction head; 3-secondary collection pipeline; 4-negative pressure dust collection component; 5-powder collection bin; 6-gas powder collection port; 7-unit pipeline; 8-flange; 9-support frame; 10-control valve; 11-air inlet; 12-induced draft fan; 13-collector; 14-spiral air duct; 15-conical connecting pipe; 16-hanging bracket; 17-weighing sensor; 18-vibrator. DETAILED DESCRIPTION

[0026] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term "arrangement", "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication. For ordinary skilled in the art, the above-mentioned terms can be understood in the specific meaning of the utility model according to specific circumstances.

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] Embodiment 1

[0029] As Figures 1-4 shown: a kind of gas powder collection system for lithium battery recycling, including gas powder collection pipeline, suction head 2 is installed in the feed end of gas powder collection pipeline, gas powder collection pipeline's discharge end is sequentially connected with negative pressure dust collection component 4, powder collection tank 5, the discharge port of negative pressure dust collection component is connected powder collection tank, gas powder collection pipeline includes main collection pipeline 1, and multiple secondary collection pipelines 3 are connected in parallel in the main collection pipeline, suction head is installed with gas powder collection port 6, and gas powder at gas powder collection port is collected into powder collection tank under the action of negative pressure dust collection component.

[0030] As a preferred embodiment, the main collection pipeline 1 and the secondary collection pipeline 3 are both spliced by a plurality of unit pipelines 7, and a flange plate 8 is installed at the splicing position of the unit pipeline. This modular design makes the installation and disassembly of the entire gas powder collection system more convenient. When a unit pipeline fails or needs maintenance, only the unit needs to be operated, without affecting the operation of the entire system. The flange plate installed at the splicing position of the unit pipeline not only ensures the tight connection between the pipelines, but also facilitates disassembly and replacement, further reducing maintenance cost and time. By splicing unit pipelines of different numbers and lengths, the layout and length of the main collection pipeline and the secondary collection pipeline can be flexibly adjusted to adapt to lithium battery recycling production lines of different scales and layouts. This design also makes it more convenient to expand the system in the future, as additional unit pipelines can be added without the need for large-scale modification of the entire system.

[0031] As a preferred embodiment, the secondary collection pipeline 3 is laid on the ground through the support frame 9, and the gas powder collection ports are installed on the secondary collection pipeline with openings facing upwards, and multiple gas powder collection ports are installed. The above design has the following advantages: (1) Optimizing the gas powder collection effect: the secondary collection pipeline is laid on the ground through the support frame, so that the gas powder collection port can be more stably installed at the desired position, avoiding the problem of poor collection effect caused by pipeline shaking or instability. The gas powder collection port is installed on the secondary collection pipeline with the opening facing upwards, and multiple gas powder collection ports are installed. This design can more effectively capture and collect the gas powder floating down from above, improving the collection efficiency and accuracy. (2) Reducing operation difficulty and cost: the use of the support frame makes the laying and installation of the secondary collection pipeline more convenient, reducing the operation difficulty and labor cost; the setting of multiple gas powder collection ports enables the system to simultaneously collect the gas powder generated by multiple process equipment, improving the work efficiency and reducing the need for manual intervention.

[0032] As a preferred embodiment, the negative pressure dust collection assembly 4 includes an air induction fan 12 and a collector 13 installed in sequence from top to bottom, a spiral air duct is installed at the top position in the collector, one end of the spiral air duct 14 is in communication with the inner cavity of the collector, the other end of the spiral air duct is in communication with the main collection pipeline, the air induction fan is installed at the top of the collector, the air suction port of the air induction fan is in communication with the inner cavity of the collector, and the air outlet of the air induction fan is connected to the dust removal equipment; a conical connecting pipe 15 is installed at the connection position of the spiral air duct and the main collection pipeline, and the pipe diameter of the conical connecting pipe increases linearly along the flow direction. In the negative pressure dust collection assembly, the negative pressure generated by the air induction fan is communicated with the spiral air duct through the inner cavity of the collector, forming a stable airflow path. The design of the spiral air duct not only helps to uniformly distribute the airflow, but also guides the gas powder mixture to enter the inner cavity of the collector more effectively, thereby improving the dust collection efficiency; the application of the conical connecting pipe at the connection position of the spiral air duct and the main collection pipeline further optimizes the airflow path. The pipe diameter of the conical connecting pipe increases linearly along the flow direction, which helps to reduce the resistance of the airflow at the connection, making the gas powder mixture enter the spiral air duct more smoothly, and avoiding the decrease of dust collection efficiency caused by poor airflow. In addition, the design of the spiral air duct and the conical connecting pipe not only optimizes the airflow path, but also enhances the stability and durability of the system. The spiral air duct can reduce the impact and wear of the airflow on the pipe wall through its unique structure, prolonging the service life of the system. The linearly increasing pipe diameter design of the conical connecting pipe helps to reduce the vortex and turbulence of the airflow at the connection, reducing the impact and wear on the system components, further improving the stability and durability of the system.

[0033] As a preferred embodiment, the control valve 10 and the air supplement port 11 are installed on the suction head 2; the control valve is installed on the gas-powder collection port, which can realize accurate control of the gas-powder collection process. According to actual needs, the control valve can be flexibly opened or closed to adjust the collection amount and collection speed of the gas-powder, so as to meet the gas-powder collection needs of different process equipment. The setting of the air supplement port helps to balance the airflow in the system and prevent the decrease of dust collection efficiency caused by poor airflow. The air supplement port can be flexibly adjusted according to the airflow in the system to ensure the stability and efficiency of the gas-powder collection process.

[0034] As a preferred embodiment, the powder collection bin 5 is a conical bin, and a vibrator 18 is installed on the outer side wall of the powder collection bin. The conical design of the powder collection bin helps to smoothly discharge the powder. The small bottom outlet of the conical bin can form a certain pressure of the powder, promoting the smooth flow of the powder and avoiding the accumulation and blockage of the powder in the bin. The installation of the vibrator further enhances the discharge effect of the powder. Through the vibration of the vibrator, the adhesion of the powder to the inner wall of the bin can be effectively prevented, ensuring that the powder can be completely discharged and improving the resource recycling rate.

[0035] The top four corners of the powder collection bin are provided with suspension frames 16, and the weighing sensors 17 are installed on the suspension frames corresponding to the suspension positions of the powder collection bin. The installation of the weighing sensors on the suspension frames of the powder collection bin can monitor the collection amount of the powder in real time. When the powder is collected to a certain amount, the weighing sensor will send a signal to remind the operator to discharge the powder in time, avoiding overloading of the bin and overflow of the powder. This real-time monitoring function not only improves the safety and stability of the system, but also helps to optimize the production process and improve the production efficiency. In addition, the cooperation of the control valve, the air supplement port, the conical bin, the vibrator, and the weighing sensor makes the whole gas-powder collection system more perfect and efficient. The optimized design of these components not only improves the overall performance of the system, but also enhances the reliability and stability of the system. Through real-time monitoring and accurate control, the system can timely discover and handle potential problems, avoiding production interruption and resource waste caused by faults.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A gas and dust collection system for lithium battery regeneration, characterized in that: The system includes a gas and powder collection pipeline. The inlet end of the gas and powder collection pipeline is equipped with a suction head. The outlet end of the gas and powder collection pipeline is sequentially connected to a negative pressure dust collection component and a powder collection box. The outlet of the negative pressure dust collection component is connected to the powder collection box. The gas and powder collection pipeline includes a main collection pipeline, and multiple secondary collection pipelines are connected in parallel on the main collection pipeline. The suction head is equipped with a gas and powder collection port. The gas and powder at the gas and powder collection port are collected into the powder collection box under the action of the negative pressure dust collection component.

2. The gas and dust collection system for lithium battery regeneration according to claim 1, characterized in that: Both the main collection pipeline and the secondary collection pipeline are composed of multiple unit pipelines spliced ​​together, and flanges are provided at the splicing positions of the unit pipelines.

3. The gas and dust collection system for lithium battery regeneration according to claim 1, characterized in that: The secondary collection pipeline is laid on the ground by a support frame, and the gas and powder collection port is set on the secondary collection pipeline with its opening facing upward. There are multiple gas and powder collection ports.

4. The gas and dust collection system for lithium battery regeneration according to claim 1, characterized in that: The negative pressure dust collection assembly includes an induced draft fan and a collector arranged sequentially from top to bottom. A spiral air passage is provided at the top of the collector. One end of the spiral air passage is connected to the inner cavity of the collector, and the other end of the spiral air passage is connected to the main collection pipeline. The induced draft fan is located at the top of the collector. The air inlet of the induced draft fan is connected to the inner cavity of the collector, and the air outlet of the induced draft fan is connected to the dust removal equipment.

5. A gas and dust collection system for lithium battery regeneration according to claim 4, characterized in that: A tapered connecting pipe is provided at the connection point between the spiral air passage and the main collection pipeline, and the diameter of the tapered connecting pipe increases linearly along the flow direction.

6. The gas and dust collection system for lithium battery regeneration according to claim 1, characterized in that: The suction head is equipped with a control valve and an air supply port.

7. A gas and dust collection system for lithium battery regeneration according to claim 1, characterized in that: The powder collection box is a conical box. A vibrator is installed on the outer wall of the powder collection box. A suspension frame is installed at the four corners of the top of the powder collection box. A weighing sensor is installed on the suspension frame corresponding to the suspension position of the powder collection box.

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