Sorting equipment and sorting system

Abstract

The utility model discloses sorting equipment and a sorting system.The sorting equipment comprises a cyclone cavity, an electromagnetic field generating device and an excitation frequency adjusting device, the cyclone cavity is used for allowing mixed powder to be sorted to spirally flow, and the mixed powder comprises non-magnetic metal conductor powder; the electromagnetic field generating device is fixedly arranged on the periphery of the cyclone cavity; the excitation frequency adjusting device is connected to the electromagnetic field generating device, and the excitation frequency adjusting device is configured to enable the electromagnetic field generating device to generate an alternating magnetic field in the cyclone cavity and can adjust the intensity and the change frequency of the alternating magnetic field. The sorting system comprises a grinding machine and sorting equipment, and the grinding machine can grind raw materials into mixed powder; and the separation equipment is arranged at the downstream of the flour mill and is used for separating the non-magnetic metal conductor powder from the mixed powder. According to the sorting equipment and the sorting system, the structure is simplified, and the sorting purity can be improved.

Description

Technical Field

[0001] This application relates to the technical field of battery recycling, and in particular to sorting equipment and sorting systems. Background Art

[0002] New energy batteries are being used more and more widely in life and industry. For example, new energy vehicles equipped with batteries have been widely used. In addition, batteries are also being used more and more in the energy storage field and so on. With the increasingly wide application of batteries, the recycling of waste batteries has become more and more urgent. On the one hand, recycling waste batteries can be used for reuse. On the other hand, recycling waste batteries can reduce the impact on the environment. Therefore, there is more and more research on battery recycling equipment in the industry.

[0003] The structural complexity of the equipment for recycling and treating waste batteries is related to the cost of recycling and utilization. Therefore, how to simplify the structure of the equipment for recycling and treating waste batteries is one of the research topics in the industry. In addition, how to improve the purity of the sorted powder is also one of the research topics in the industry. Summary of the Utility Model

[0004] To solve the above technical problems, this application provides a sorting equipment and a sorting system that can improve sorting purity and have a simple structure.

[0005] This application is implemented through the following technical solutions.

[0006] The first aspect of this application provides a sorting equipment, including:

[0007] A cyclone chamber for allowing the mixed powder to be sorted to flow spirally, and the mixed powder includes non-magnetic metal conductor powder;

[0008] An electromagnetic field generating device fixedly arranged on the outer periphery of the cyclone chamber;

[0009] An excitation frequency adjusting device connected to the electromagnetic field generating device, and the excitation frequency adjusting device is configured to enable the electromagnetic field generating device to generate an alternating magnetic field in the cyclone chamber and to adjust the intensity and change frequency of the alternating magnetic field.

[0010] The electromagnetic field generating device generates an alternating magnetic field in the cyclone chamber through the excitation frequency adjusting device. The alternating magnetic field generates induced eddy currents in the non-magnetic metal conductor powder flowing spirally in the cyclone chamber. The magnetic field generated by the eddy currents interacts with the alternating electromagnetic field, and the generated repulsive force pushes the non-magnetic metal conductor powder away from the remaining powder, thereby separating the non-magnetic metal conductor powder. Moreover, since the electromagnetic field generating device is fixedly arranged on the outer periphery of the cyclone chamber, that is, the position of the electromagnetic field generating device is fixed, the motor drive mechanical structure for driving rotation is omitted, simplifying the structure of the sorting equipment, which is conducive to reducing the cost of the equipment. In addition, by adjusting the intensity and change frequency of the alternating magnetic field through the excitation frequency adjusting device, the induced eddy currents generated in the non-magnetic metal conductor powder can be adjusted, thereby precisely adjusting the repulsive force on the non-magnetic metal conductor powder, and further improving the purity of the separated non-magnetic metal conductor powder and the sorting quality.

[0011] In some embodiments, the sorting equipment further includes an acceleration cylinder having an acceleration chamber. The acceleration chamber communicates above the cyclone chamber, and a feed portion for the mixed powder to enter the acceleration chamber is provided on the side wall of the acceleration cylinder.

[0012] The mixed powder first enters the acceleration chamber, then spirally passes through the acceleration chamber and enters the cyclone chamber, where sorting is performed. During the process of passing through the acceleration chamber, the flow velocity of the mixed powder will increase due to the action of gravity, so that the velocity of the mixed powder entering the cyclone chamber is relatively high, thereby increasing the repulsive force on the non-magnetic metal conductor powder, enabling the separation of non-magnetic metal conductor powder with a larger particle size range, improving the purity of the separated non-magnetic metal conductor powder, and improving the sorting quality.

[0013] In some embodiments, the side wall of the acceleration cylinder is connected to the feed portion. The feed portion has a feed channel extending along the spiral direction with the central axis of the acceleration cylinder as the spiral center axis. One end of the feed channel is open and communicates with the acceleration chamber, and the other end is an inlet.

[0014] In this way, the feed portion can make the mixed powder enter the acceleration chamber along the spiral direction, increasing the tangential velocity of the mixed powder entering the acceleration chamber along the inner side wall of the acceleration cylinder, increasing the flow velocity of the mixed powder entering the cyclone chamber, thereby increasing the repulsive force received by the non-magnetic metal conductor powder, enabling the separation of non-magnetic metal conductor powder with a larger particle size range, improving the purity of the separated non-magnetic metal conductor powder, and improving the sorting quality.

[0015] In some embodiments, a first discharge portion for discharging the non-magnetic metal conductor powder separated from the mixed powder is provided at the upper end of the acceleration cylinder, and a second discharge portion for discharging the remaining powder after the non-magnetic metal conductor powder is separated from the mixed powder is provided at the lower end of the cyclone chamber.

[0016] In this way, the non-magnetic metal conductor powder separated in the cyclone chamber is discharged through the first discharge part, and the remaining powder is discharged through the second discharge part, realizing the separation of the non-magnetic metal conductor powder and the remaining powder. Moreover, the sorting device has a simple structure and high sorting purity.

[0017] In some embodiments, the first discharge part has a first discharge channel, one end of the first discharge channel is open and communicated with the upper end of the acceleration chamber, and the other end is an open first discharge port.

[0018] In this way, the first discharge part discharges the separated non-magnetic metal conductor powder through the first discharge channel, and the first discharge part is convenient for connecting with the device downstream of the sorting device for receiving the non-magnetic metal conductor powder. Moreover, the sorting device has a simple structure and high sorting purity.

[0019] In some embodiments, the second discharge part has a second discharge channel, one end of the second discharge channel is open and communicated with the cyclone chamber, and the other end is an open second discharge port.

[0020] In this way, the second discharge part discharges the separated remaining powder through the second discharge channel, and the second discharge part is convenient for connecting with the device for collecting the remaining powder. Moreover, the sorting device has a simple structure and high sorting purity.

[0021] In some embodiments, the sorting device further includes a cyclone cylinder, the inner cavity of the cyclone cylinder is the cyclone chamber, the cyclone cylinder and the acceleration cylinder are integrally formed, and the electromagnetic field generating device is fixedly connected to the outer periphery of the cyclone cylinder.

[0022] In this way, the overall structure formed by the cyclone cylinder and the acceleration cylinder has high structural strength, and the sealing performance at the joint of the two is high, reducing the probability of the mixed powder escaping from the gap at the joint.

[0023] In some embodiments, the electromagnetic field generating device defines the cyclone chamber, and the electromagnetic field generating device is fixedly connected to the lower end of the acceleration cylinder.

[0024] The electromagnetic field generating device itself defines the cyclone chamber, eliminating the special cylinder for forming the cyclone chamber and simplifying the structure of the sorting device.

[0025] In some embodiments, the electromagnetic field generating device includes a housing and a plurality of electromagnets arranged in the housing, and the plurality of electromagnets are arranged in a Halbach array.

[0026] In this way, the magnetic field intensity generated by the electromagnetic field generating device in the cyclone chamber is strong, while the magnetic field intensity outside the electromagnetic field generating device is weak, so as to better exert the repulsive effect on the non-magnetic metal conductor powder and enable the non-magnetic metal conductor powder to be discharged smoothly and quickly.

[0027] In some embodiments, the housing is provided with an inlet joint for feeding an insulating medium into the space between the housing and the electromagnet.

[0028] In this way, by feeding the insulating medium into the space between the housing and the electromagnet, the coil of the electromagnet is surrounded by the insulating medium, so that the coils of multiple electromagnets are insulated from each other, enabling each electromagnet to independently generate a magnetic field, and further enabling the electromagnet group to generate a magnetic field in a predetermined direction.

[0029] In some embodiments, the sorting device further includes: a circulating conveying assembly, both ends of which are respectively connected to a first interface and a second interface of the housing, and the circulating conveying assembly is used for allowing the insulating medium in the housing to flow through and flow back into the housing; a cooling device provided on the circulating conveying assembly for cooling the insulating medium flowing through the circulating conveying assembly.

[0030] The insulating medium in the housing flows into the circulating conveying assembly through the first interface, and after passing through the circulating conveying assembly, it flows back into the housing through the second interface. During this circulating process, the cooling device cools the insulating medium, enabling the insulating medium in the housing to be maintained within a set temperature range, enabling the temperature of the electromagnet to be controlled within a suitable range, so that the electromagnet generates a magnetic field in a predetermined direction and with a predetermined intensity, which is conducive to improving the sorting quality.

[0031] In some embodiments, the circulating conveying assembly includes an outflow pipeline, a power pump, and a return pipeline. Both ends of the outflow pipeline are respectively connected between the first interface of the housing and the inlet of the cooling device, both ends of the return pipeline are respectively connected between the second interface of the housing and the outlet of the cooling device, and the power pump is connected to the outflow pipeline.

[0032] The power pump is used to provide power for the flow of the insulating medium, driving the insulating medium to circulate between the housing, the outflow pipeline, the cooling device, and the return pipeline, so that the cooling device cools the circulating insulating medium, enabling the insulating medium in the housing to be maintained within a set temperature range, enabling the temperature of the electromagnet to be controlled within a suitable range, so that the electromagnet generates a magnetic field in a predetermined direction and with a predetermined intensity, which is conducive to improving the sorting quality.

[0033] In some embodiments, the sorting device further includes a temperature detection device provided on the housing, and the cooling device is used to cool the insulating medium based on the temperature measured by the temperature detection device.

[0034] In this way, through the feedback of the temperature detection device on the temperature around the housing, the cooling device can adjust the strength of the cooling of the insulating medium, so that the temperature of the electromagnet can be controlled within a suitable range, thereby enabling the electromagnet to generate a magnetic field with a predetermined direction and intensity, which is conducive to improving the sorting quality.

[0035] In some embodiments, the excitation frequency adjustment device includes: a rectification unit for converting alternating current into direct current; a filtering unit connected to the output end of the rectification unit for filtering the direct current; an IGBT module connected to the output end of the filtering unit and connected to the input ends of the plurality of electromagnets, and the IGBT module is used to adjust the intensity and direction of the current after filtering to adjust the intensity and direction of the current input to the plurality of electromagnets.

[0036] In this way, the excitation frequency adjustment device enables the change frequency of the alternating magnetic field generated by the electromagnetic field generating device to reach 50000 Hz or even higher, which is many times greater than the rotational speed of the permanent magnetic field (3000 r / min = 50 Hz), and the generated induced repulsive force is greater. Moreover, the excitation frequency adjustment device adjusts the induced eddy current to precisely control the repulsive force received by the non-magnetic metal conductor powder.

[0037] The second aspect of the present application provides a sorting system, including: a grinding machine configured to grind raw materials into the mixed powder; the above-mentioned sorting device disposed downstream of the grinding machine for sorting out the non-magnetic metal conductor powder from the mixed powder.

[0038] Since the sorting system includes the sorting device and has all the beneficial effects of the sorting device, the structure of the sorting system is simple, the equipment cost is low, and the purity of the sorted non-magnetic metal conductor powder is improved, and the sorting quality is improved.

[0039] In some embodiments, the sorting system further includes: a cyclone separator disposed downstream of the sorting device and configured to enable the fine powder in the non-magnetic metal conductor powder to be discharged from the upper end of the cyclone separator along with the gas, and the remaining coarse powder in the non-magnetic metal conductor powder to be discharged from the lower end of the cyclone separator; a bag filter disposed downstream of the cyclone separator and configured to filter out the fine powder from the gas carrying the discharged fine powder.

[0040] In this way, the fine powder and the coarse powder in the non-magnetic metal conductor powder sorted by the sorting device are separated for subsequent separate collection. The bag filter is used to filter out the fine powder flowing with the gas to complete the collection of the fine powder.

[0041] In some embodiments, at least two sorting devices are provided. The at least two sorting devices include a first sorting device and a second sorting device. The second sorting device is disposed downstream of the first sorting device. The first sorting device is used to sort out a first powder material, and the second sorting device is used to sort out a second powder material.

[0042] In this way, the structures of the first sorting device and the second sorting device are the same. By adjusting the excitation frequency adjustment devices of the two devices, the sorting of the two powder materials can be achieved without modifying the structure of the devices. Therefore, the cost of the devices is saved.

[0043] In some embodiments, one of the first powder material and the second powder material is aluminum powder, and the other is copper powder.

[0044] Aluminum and copper are commonly used materials for batteries. This sorting system can sort out aluminum powder and copper powder, making the sorting system suitable for sorting waste materials of batteries. Moreover, the structure of the sorting system is simple and the sorting purity is high.

[0045] Utility Model Effects

[0046] Through this application, a sorting device and a sorting system are provided that can improve sorting purity and have a simple structure. Brief Description of the Drawings

[0047] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of this application. Moreover, in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0048] Figure 1 Partial structural schematic diagram of the first structure of the sorting device provided by some embodiments of this application;

[0049] Figure 2 Top view of the sorting device provided by some embodiments of this application;

[0050] Figure 3 Partial structural schematic diagram of the second structure of the sorting device provided by some embodiments of this application;

[0051] Figure 4 Front view of the sorting device provided by some embodiments of this application;

[0052] Figure 5 Side view of the sorting device provided by some embodiments of this application;

[0053] Figure 6 Schematic diagram of the cross-section of the electromagnet group provided by some embodiments of this application;

[0054] Figure 7 Structural schematic diagram of an electromagnet provided for some embodiments of the present application;

[0055] Figure 8 Structural schematic diagram of the first structure of a sorting system provided for some embodiments of the present application;

[0056] Figure 9 Partial structural schematic diagram of the second structure of a sorting system provided for some embodiments of the present application.

[0057] Explanation of reference numerals in the drawings

[0058] 1 Sorting equipment; 1a First sorting equipment; 1b Second sorting equipment; 10 Cyclone chamber; 11 Electromagnetic field generating device; 111 Housing; 1111 Outer sleeve; 1112 Inner sleeve; 1113 Upper end plate; 1114 Lower end plate; 112 Electromagnet; 1121 Iron core; 1122 Coil; 113 First interface; 114 Second interface; 12 Excitation frequency adjusting device; 121 Rectifying unit; 122 Filtering unit; 123 IGBT module; 13 Acceleration cylinder; 130 Acceleration chamber; 131 Feeding part; 132 First discharging part; 14 Cyclone; 141 Second discharging part; 151 Adding joint; 152 Discharging joint; 161 Circulating conveying assembly; 1611 Outflow pipeline; 1612 Power pump; 1613 Return pipeline; 162 Cooling device; 17 Temperature detecting device; 18 Mounting rack; 2 Pulverizer; 3 Cyclone separator; 4 Bag filter; 5 Raw material bin; 6 Feeder. Detailed implementation manners

[0059] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification of the present application and the above drawings are intended to cover non-exclusive inclusion.

[0061] In the description of the embodiments of the present application, technical terms such as "first", "second", "third", etc. are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality" means more than two unless otherwise specifically defined.

[0062] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0063] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0064] In the description of the embodiments of the present application, the orientation or position relationship indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and "circumferential" are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0065] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0066] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0067] Below, this application is described in detail.

[0068] At present, new energy batteries are increasingly widely used in life and industry. New energy batteries are not only applied to energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in electric transportation such as electric bicycles, electric motorcycles, and electric vehicles, as well as in multiple fields such as aerospace. With the continuous expansion of the application fields of power batteries, the market demand is also continuously increasing.

[0069] The equipment for recycling waste batteries includes a powder mill for grinding the original object into a mixed powder and a sorting device for sorting out a certain component or several mixed components required from the mixed powder. For example, non-magnetic metal conductor powders such as copper powder, aluminum powder, or lead powder are sorted out from the mixed powder.

[0070] The inventor of the present application noticed that currently, the sorting device for sorting out non-magnetic metal conductor powders from mixed powders rotates a permanent magnetic material to generate an alternating magnetic field, which acts on the helically flowing non-magnetic metal conductor to generate eddy currents. The induced magnetic field generated by the eddy currents interacts with the alternating magnetic field generated by the permanent magnetic material to generate a repulsive force on the non-magnetic metal conductor powder, pushing the non-magnetic metal conductor powder and the remaining powders to flow in different directions, separating the non-magnetic metal conductor powder, and thus achieving the purpose of sorting. However, the permanent magnetic material is rotated by a motor-driven mechanical structure, with a limited rotation speed (≤10000r / min), a limited induced thrust, a small and unstable induced thrust, making it difficult to sort fine powders or non-magnetic metal conductors with low conductivity. Secondly, the overall rotation of the permanent magnetic material causes the inlet and outlet pipes connected to it to rotate simultaneously, with many moving parts, a complex structure, and a high cost of the equipment.

[0071] The inventor of the present application found through research that instead of the traditional rotating permanent magnetic material, a position-fixed electromagnetic field generating device is used. The position of the electromagnetic field generating device is fixed, eliminating the motor-driven mechanical structure for driving the rotation of the permanent magnetic material, simplifying the structure of the sorting device, and thus facilitating the reduction of the equipment cost. In addition, by adjusting the intensity and change frequency of the alternating magnetic field generated by the electromagnetic field generating device through an excitation frequency adjusting device, the induced eddy currents generated by the non-magnetic metal conductor powder can be adjusted, thereby precisely adjusting the repulsive force generated by the alternating magnetic field on the non-magnetic metal conductor powder, and further improving the purity of the sorted non-magnetic metal conductor powder and the sorting quality.

[0072] Based on such a design concept, the inventors of the present application have designed a sorting device, which includes a cyclone chamber, an electromagnetic field generating device, and an excitation frequency adjusting device. The cyclone chamber is used for the spiral flow of the mixed powder to be sorted, and the mixed powder includes non-magnetic metal conductor powder. The electromagnetic field generating device is fixedly arranged on the outer periphery of the cyclone chamber. The excitation frequency adjusting device is connected to the electromagnetic field generating device and is configured to enable the electromagnetic field generating device to generate an alternating magnetic field in the cyclone chamber and to adjust the intensity and change frequency of the alternating magnetic field.

[0073] The excitation frequency adjusting device enables the electromagnetic field generating device to generate an alternating magnetic field in the cyclone chamber. The alternating magnetic field generates induced eddy currents in the non-magnetic metal conductor powder that quickly enters the cyclone chamber. The magnetic field generated by the eddy currents interacts with the alternating magnetic field, and the generated repulsive force pushes the non-magnetic metal conductor powder away from the remaining powder, thereby sorting out the non-magnetic metal conductor powder. Moreover, since the electromagnetic field generating device is fixedly arranged on the outer periphery of the cyclone chamber, that is, the position of the electromagnetic field generating device is fixed, eliminating the motor drive mechanical structure for rotation and simplifying the structure of the sorting device, which is conducive to reducing the cost of the device. In addition, by adjusting the intensity and change frequency of the alternating magnetic field through the excitation frequency adjusting device, the induced eddy currents can be adjusted, thereby precisely adjusting the repulsive force generated on the non-magnetic metal conductor powder, and further improving the purity of the sorted non-magnetic metal conductor powder and the sorting quality.

[0074] The sorting device provided by the embodiments of the present application can be but is not limited to being used in a battery material recycling system, such as for sorting the powder of battery materials. Of course, those skilled in the art should understand that the sorting device provided by the embodiments of the present application is not only used for sorting battery powder, but can also be applied to sorting powders in the fields of electronic materials, medicine, and chemical industry.

[0075] Below, with reference to Figures 1 to 9 Some embodiments of the present application will be described in detail.

[0076] Figure 1 is a partial structural schematic diagram of the first structure of the sorting device provided by some embodiments of the present application; Figure 2 is a top view of the sorting device provided by some embodiments of the present application; Figure 3 is a partial structural schematic diagram of the second structure of the sorting device provided by some embodiments of the present application; Figure 4 is a front view of the sorting device provided by some embodiments of the present application; Figure 5 is a side view of the sorting device provided by some embodiments of the present application; Figure 6 is a schematic cross-sectional view of the electromagnet group provided by some embodiments of the present application;

[0077] Figure 7Schematic structural diagram of an electromagnet provided for some embodiments of the present application; Figure 8 Schematic structural diagram of the first structure of a sorting system provided for some embodiments of the present application; Figure 9 Partial structural diagram of the second structure of a sorting system provided for some embodiments of the present application.

[0078] As Figures 1 to 3 As shown, a first aspect of the present application provides a sorting device 1, including a cyclone chamber 10, an electromagnetic field generating device 11, and an excitation frequency adjusting device 12. The cyclone chamber 10 is used for the spiral flow of the mixed powder to be sorted, and the mixed powder includes non-magnetic metal conductor powder. The electromagnetic field generating device 11 is fixedly arranged on the outer periphery of the cyclone chamber 10. The excitation frequency adjusting device 12 is connected to the electromagnetic field generating device 11. The excitation frequency adjusting device 12 is configured to enable the electromagnetic field generating device 11 to generate an alternating magnetic field in the cyclone chamber 10 and to adjust the intensity and change frequency of the alternating magnetic field.

[0079] The cyclone chamber 10 is a cavity for the spiral flow of the mixed powder. The shape of the cyclone chamber 10 can be, but is not limited to, an inverted conical shape, an inverted frustum shape, etc. The cyclone chamber 10 can be defined by a cylindrical body, and the electromagnetic field generating device 11 is fixedly connected to the outer periphery of the cylindrical body. The cyclone chamber 10 can also be directly defined by the outer surface of the electromagnetic field generating device 11.

[0080] A non-magnetic metal conductor refers to a metal material that does not have magnetism but has good electrical conductivity. Since a non-magnetic metal conductor does not have magnetism, it will not be attracted by a magnet. Common non-magnetic metal conductors include, but are not limited to, copper, aluminum, gold, silver, zinc, tin, lead, nickel, titanium, magnesium, etc. Powder refers to a solid substance composed of a large number of tiny particles, and the size of these particles is usually in the range of micrometers to millimeters. The non-magnetic metal conductor powder is a solid substance composed of a large number of tiny non-magnetic metal conductor particles.

[0081] The mixed powder includes non-magnetic metal conductor powder, indicating that the mixed powder is composed of non-magnetic metal conductor powder and other powders. The non-magnetic metal conductor powder will form an induced eddy current in the spiral flow state, and the induced eddy current will generate a magnetic field. The magnetic field generated by the induced eddy current and the alternating magnetic field generated by the electromagnetic field generating device 11 interact with each other to generate a repulsive force acting on the non-magnetic metal conductor powder, while the other powders in the mixed powder except the non-magnetic metal conductor powder are not affected by the magnetic field. In this way, the non-magnetic metal conductor powder and other powders have different force directions and will flow in different directions, so that the non-magnetic metal conductor powder can be separated from the mixed powder.

[0082] The electromagnetic field generating device 11 generates an alternating magnetic field in the cyclone chamber 10 through the excitation frequency adjusting device 12. The alternating magnetic field generates induced eddy currents in the non-magnetic metal conductor powder flowing spirally in the cyclone chamber 10. The magnetic field generated by the eddy currents interacts with the alternating electromagnetic field, and the generated repulsive force pushes the non-magnetic metal conductor powder away from the remaining powder, thereby separating the non-magnetic metal conductor powder. Moreover, since the electromagnetic field generating device 11 is fixedly arranged on the outer periphery of the cyclone chamber 10, that is, the position of the electromagnetic field generating device 11 is fixed, the motor drive mechanical structure for driving rotation is omitted, and the structure of the sorting device 1 is simplified, which is beneficial to reducing the cost of the device. In addition, for non-magnetic metal conductor powders with different particle sizes and different conductivities, the excitation frequency adjusting device 12 can adjust the intensity and change frequency of the alternating magnetic field, so that the generated repulsive force is adapted to separate the non-magnetic metal conductor powder from the mixed powder. Therefore, the sorting device 1 has a wide range of applications, can separate tiny non-magnetic metal conductor powders, improve the purity of the separated non-magnetic metal conductor powder, and improve the sorting quality.

[0083] In some embodiments of the present application, the sorting device 1 further includes an acceleration cylinder 13 having an acceleration chamber 130. The acceleration chamber 130 communicates with the upper part of the cyclone chamber 10, and a feeding part 131 for feeding the mixed powder into the acceleration chamber 130 is provided on the side wall of the acceleration cylinder 13.

[0084] The acceleration cylinder 13 is a cylinder with an acceleration chamber 130 inside. The acceleration chamber 130 can be, but is not limited to, cylindrical, conical, frustum-shaped, etc.

[0085] The feeding part 131 can be a cylindrical structure with a channel inside for introducing the mixed powder into the acceleration cylinder 13. The feeding part 131 can also be an opening formed on the side wall of the acceleration cylinder 13, and the mixed powder enters the acceleration cylinder 13 through this opening.

[0086] The mixed powder first enters the acceleration chamber 130, then spirally passes through the acceleration chamber 130 and enters the cyclone chamber 10 for sorting. During the process of passing through the acceleration chamber 130, the flow velocity of the mixed powder will increase due to the action of gravity, so that the velocity of the mixed powder entering the cyclone chamber 10 is relatively high, thereby increasing the repulsive force generated on the non-magnetic metal conductor powder, enabling the separation of non-magnetic metal conductor powders with a larger particle size range, improving the purity of the separated non-magnetic metal conductor powder, and improving the sorting quality.

[0087] In some embodiments of the present application, the acceleration cylinder 13 is a cylindrical cylinder, that is, the acceleration chamber 130 is cylindrical.

[0088] Thus, the inner wall of the acceleration cylinder 13 is an arc surface. During the spiral flow of the mixed powder in the acceleration chamber 130, some of the mixed powder can smoothly move along the inner wall of the acceleration cylinder 13 without being blocked by sharp corners, so that the mixed powder flows at a higher speed, improving the smoothness of the sorting operation of the mixed powder.

[0089] In some embodiments of the present application, the side wall of the acceleration cylinder 13 is connected to the feeding part 131. The feeding part 131 has a feeding channel extending along the spiral direction with the central axis of the acceleration cylinder 13 as the spiral central axis. One end of the feeding channel is open and communicates with the acceleration chamber 130, and the other end is an inlet.

[0090] Thus, the feeding part 131 can make the mixed powder enter the acceleration chamber 130 along the spiral direction, increasing the tangential velocity of the mixed powder along the inner side wall of the acceleration cylinder 13 when entering the acceleration chamber 130, increasing the flow velocity of the mixed powder entering the cyclone chamber 10, thereby increasing the repulsive force on the non-magnetic metal conductor powder, enabling the sorting of non-magnetic metal conductor powder with a larger particle size range, improving the purity of the sorted non-magnetic metal conductor powder, and improving the sorting quality.

[0091] In some embodiments of the present application, as Figure 2 shown, one end of the feeding part 131 far from the acceleration chamber 130 forms a horn-shaped structure, and the opening at the large-diameter end of the horn-shaped structure is the inlet.

[0092] Thus, the horn-shaped structure is convenient for gathering the scattered mixed powder to introduce more mixed powder into the acceleration chamber 130.

[0093] In some embodiments of the present application, as Figure 1 and Figure 3 shown, the upper end of the acceleration cylinder 13 is provided with a first discharging part 132 for discharging the non-magnetic metal conductor powder sorted from the mixed powder, and the lower end of the cyclone chamber 10 is provided with a second discharging part 141 for discharging the remaining powder after the non-magnetic metal conductor powder is sorted from the mixed powder.

[0094] The electromagnetic field generating device 11 generates an alternating magnetic field in the cyclone chamber 10 through the excitation frequency adjusting device 12. The alternating magnetic field generates an induced eddy current on the non-magnetic metal conductor powder quickly entering the cyclone chamber 10. The induced magnetic field generated by the induced eddy current interacts with the alternating magnetic field generated by the electromagnetic field generating device 11, pushing the non-magnetic metal conductor powder towards the central axis of the cyclone chamber 10 to form an upper vortex motion at the central axis, and thus discharging from the first discharging part 132 at the upper end. The remaining powder is not affected by the magnetic field and discharges downward through the second discharging part 141 under the action of gravity and the force of the wall of the cyclone chamber 10.

[0095] The first discharge part 132 can be a cylindrical structure provided in the acceleration cylinder 13. One end of the cylindrical structure is open and communicates with the acceleration chamber 130, and the other end is an outlet. The first discharge part 132 can also be an opening formed in the acceleration cylinder 13. Similarly, the second discharge part 141 can be a cylindrical structure of the solid wall provided outside the cyclone chamber 10. One end of the cylindrical structure is open and communicates with the cyclone chamber 10, and the other end is an outlet. The second discharge part 141 can also be an opening formed in the solid wall outside the cyclone chamber 10.

[0096] In this way, the non-magnetic metal conductor powder separated in the cyclone chamber 10 is discharged through the first discharge part 132, and the remaining powder is discharged through the second discharge part 141, realizing the separation of the non-magnetic metal conductor powder and the remaining powder. Moreover, the structure of the sorting device 1 is simple and the sorting purity is high.

[0097] In some embodiments of the present application, the first discharge part 132 is located at the central position of the upper end of the cyclone chamber 10, and the second discharge part 141 is located at the central position of the lower end of the cyclone chamber 10. In this way, the separated non-magnetic metal conductor powder and the remaining powder can be discharged more fully.

[0098] In some embodiments of the present application, the first discharge part 132 has a first discharge channel. One end of the first discharge channel is open and communicates with the upper end of the acceleration chamber 130, and the other end is a first outlet.

[0099] The first discharge channel can extend along an arc or along a straight line.

[0100] In this way, the first discharge part 132 discharges the separated non-magnetic metal conductor powder through the first discharge channel, and the first discharge part 132 is convenient for connecting with the device downstream of the sorting device 1 for receiving the non-magnetic metal conductor powder. Moreover, the structure of the sorting device is simple and the sorting purity is high.

[0101] In some embodiments of the present application, the first discharge channel of the first discharge part 132 extends along the vertical direction. In this way, it is beneficial to reduce the speed loss of the non-magnetic metal conductor powder during the process of passing through the first discharge channel, so that the non-magnetic metal conductor powder can be discharged smoothly and quickly.

[0102] In some embodiments of the present application, the first discharge part 132 and the acceleration cylinder 13 are integrally formed. The structural strength is high, and the sealing performance at the joint of the two is high.

[0103] In some embodiments of the present application, the second discharge part 141 has a second discharge channel. One end of the second discharge channel is open and communicates with the cyclone chamber 10, and the other end is a second outlet.

[0104] The second discharge channel can extend along an arc or along a straight line.

[0105] In this way, the second discharging part 141 discharges the sorted remaining powder through the second discharging channel, and the second discharging part 141 is convenient for connecting with the equipment for collecting the remaining powder. Moreover, the sorting equipment has a simple structure and a high sorting purity.

[0106] In some embodiments of the present application, the second discharging channel of the second discharging part 141 extends along the vertical direction. In this way, it is beneficial to reduce the speed loss of the remaining powder during the process of passing through the second discharging channel, so that the remaining powder can be discharged smoothly and quickly.

[0107] In some embodiments of the present application, the cyclone chamber 10 is an inverted conical shape or an inverted frustum of a cone shape.

[0108] In this way, the remaining powder gathers downward and toward the center under the guiding action of the inner wall of the cyclone chamber 10, and thus is discharged through the second discharging part 141 at the lower end of the cyclone chamber 10.

[0109] In some embodiments of the present application, as Figure 1 shown, the sorting equipment 1 further includes a cyclone cylinder 14. The inner cavity of the cyclone cylinder 14 is the cyclone chamber 10. The cyclone cylinder 14 and the acceleration cylinder 13 are integrally formed, and the electromagnetic field generating device 11 is fixedly connected to the outer periphery of the cyclone cylinder 14.

[0110] In this way, the overall structure formed by the cyclone cylinder 14 and the acceleration cylinder 13 has a high structural strength, and the sealing performance at the joint of the two is high, reducing the probability of the mixed powder escaping from the gap at the joint.

[0111] In some embodiments of the present application, the cyclone cylinder 14 is an inverted conical cylinder or an inverted frustum of a cone cylinder.

[0112] In this way, the cyclone chamber 10 is an inverted conical shape or an inverted frustum of a cone shape, so that the remaining powder gathers downward and toward the center under the guiding action of the inner wall of the cyclone cylinder 14, and thus is discharged through the second discharging part 141 at the lower end of the cyclone cylinder 14.

[0113] In some embodiments of the present application, the second discharging part 141 is connected to the lower end of the cyclone cylinder 14, and the two are integrally formed. The structural strength is high, and the sealing performance at the joint of the two is high.

[0114] In some embodiments of the present application, as Figure 3 shown, the electromagnetic field generating device 11 defines the cyclone chamber 10, and the electromagnetic field generating device 11 is fixedly connected to the lower end of the acceleration cylinder 13.

[0115] The electromagnetic field generating device 11 itself defines the cyclone chamber 10, eliminating the special cylinder for forming the cyclone chamber 10 and simplifying the structure of the sorting equipment 1.

[0116] In some embodiments of the present application, the inner surface of the electromagnetic field generating device 11 is an inverted conical surface or an inverted frustum-shaped surface.

[0117] Thus, the cyclone chamber 10 is an inverted cone or an inverted frustum, so that the remaining powder aggregates downward and toward the center under the guiding action of the chamber wall of the cyclone chamber 10, and is discharged through the second discharge portion 141 at the lower end of the cyclone chamber 10.

[0118] In some embodiments of the present application, the electromagnetic field generating device 11 includes a housing 111 and a plurality of electromagnets 112 disposed within the housing 111, and the plurality of electromagnets 112 are arranged in a Halbach array.

[0119] In the embodiments of the present application, "a plurality of" means two or more.

[0120] The housing 111 is a housing that covers the outer surfaces of the electromagnet group composed of a plurality of electromagnets 112. Exemplarily, as Figure 3 shown, the housing 111 includes an outer sleeve 1111, an inner sleeve 1112, an upper end plate 1113, and a lower end plate 1114. Both the outer sleeve 1111 and the inner sleeve 1112 are inverted frustum-shaped cylinders, and the outer sleeve 1111 is sleeved outside the inner sleeve 1112. Both the upper end plate 1113 and the lower end plate 1114 are circular rings. The upper end plate 1113 is connected between the upper edge of the outer sleeve 1111 and the upper edge of the inner sleeve 1112, and the lower end plate 1114 is connected between the lower edge of the outer sleeve 1111 and the lower edge of the inner sleeve 1112, so that the outer sleeve 1111, the inner sleeve 1112, the upper end plate 1113, and the lower end plate 1114 enclose a closed accommodation space, and the electromagnet group composed of a plurality of electromagnets 112 is accommodated in this accommodation space. The inverted frustum-shaped cavity surrounded by the inner sleeve 1112 is the cyclone chamber 10.

[0121] A Halbach array is an array composed of a series of magnets with different magnetization directions. These magnets are arranged in a specific pattern so that the magnetic field on one side of the array is enhanced while the magnetic field on the other side is weakened. This structure can be achieved by simple geometric rotation, that is, each adjacent magnet rotates a fixed angle relative to the previous magnet.

[0122] Exemplarily, as Figure 6 shown, the plurality of electromagnets 112 are sequentially distributed around the central axis of the cyclone chamber 10. For any two adjacent electromagnets 112, the N pole and the S pole of one of the electromagnets 112 are distributed radially along the circular shape formed by the arrangement of the plurality of electromagnets 112, and the N pole and the S pole of the other electromagnet 112 are distributed tangentially along the circular shape. For any two adjacent electromagnets 112, the second electromagnet 112 in the counterclockwise direction Figure 6 rotates a certain angle counterclockwise relative to the first electromagnet 112.

[0123] In this way, the magnetic field intensity generated by the electromagnetic field generating device 11 in the cyclone chamber 10 is strong, while the magnetic field intensity outside the electromagnetic field generating device 11 is weak, so as to better exert the repulsive force on the non-magnetic metal conductor powder, and enable the non-magnetic metal conductor powder to be discharged smoothly and quickly.

[0124] In some embodiments of the present application, the space enclosed by the plurality of electromagnets 112 is in an inverted conical shape or an inverted frustum shape.

[0125] In this way, the interaction between the alternating magnetic field generated by the plurality of electromagnets 112 and the induced magnetic field formed by the non-magnetic metal conductor powder generates a repulsive force on the non-magnetic metal conductor powder along an inclined upward direction approaching the central axis of the cyclone chamber 10, thereby pushing the non-magnetic metal conductor powder towards the central axis of the cyclone chamber 10, forming an upper vortex motion on the central axis, and thus discharging from the first discharge part 132 at the upper end.

[0126] In some embodiments of the present application, as Figure 7 shown, the electromagnet 112 includes an iron core 1121 and a coil 1122 wound around the outer periphery of the iron core. The excitation frequency adjusting device 12 is connected to the coil 1122 for passing current into the coil 1122 and capable of adjusting the intensity and direction of the current input into the coil 1122.

[0127] The coil 1122 is formed by winding a conductive material (usually a copper wire). When there is current passing through the coil 1122, according to Ampere's law, a magnetic field will be generated around the coil 1122. The iron core 1121 can be soft iron or other ferromagnetic materials. Because magnetic materials have a high magnetic permeability and can effectively guide magnetic lines of force, the iron core 1121 can concentrate and enhance the magnetic field generated by the coil 1122. By adjusting the intensity and direction of the current input into the coil 1122 by the excitation frequency adjusting device 12, the intensity and change frequency of the alternating magnetic field generated by the electromagnet group composed of the plurality of electromagnets 112 can be changed.

[0128] It should be noted that in order to maintain the magnetic pole arrangement of the plurality of electromagnets 112 in the electromagnetic field generating device 11, the excitation frequency adjusting device 12 synchronously adjusts the magnetic poles of each electromagnet 112. For example, Figure 6 the N poles and S poles of all the electromagnets 112 in [[ ]] synchronously alternate, that is, the excitation frequency adjusting device 12 synchronously changes the direction of the current input into the coils 1122 of each electromagnet 112.

[0129] In some embodiments of the present application, as Figure 4 shown, an inlet joint 151 is provided at the upper end of the outer shell 111. The inlet joint 151 is used to supply an insulating medium into the space between the outer shell 111 and the electromagnet 112.

[0130] The insulating medium may be, but is not limited to, insulating oil.

[0131] In this way, an insulating medium is supplied into the space between the housing 111 and the electromagnet 112, so that the coil 1122 of the electromagnet 112 is surrounded by the insulating medium, and the coils 1122 of the plurality of electromagnets 112 are insulated from each other, so that each electromagnet 112 independently generates a magnetic field, and further enables the electromagnet group to generate a magnetic field in a predetermined direction.

[0132] In some embodiments of the present application, as Figure 4 shown, the sorting device 1 further includes a circulating conveying assembly 161 and a cooling device 162. The two ends of the circulating conveying assembly 161 are respectively connected to the first interface 113 and the second interface 114 of the housing 111. The circulating conveying assembly 161 is used for allowing the insulating medium in the housing 111 to flow through and flow back into the housing 111; the cooling device 162 is arranged on the circulating conveying assembly 161 and is used for cooling the insulating medium flowing through the circulating conveying assembly 161.

[0133] The cooling device 162 may be, but is not limited to, an air cooler, a water cooler, a liquid nitrogen cooler, etc.

[0134] The insulating medium in the housing 111 flows into the circulating conveying assembly 161 through the first interface 113, and the insulating medium flows back into the housing 111 through the second interface 114 after passing through the circulating conveying assembly 161. During this circulating process, the cooling device 162 cools the insulating medium, which can keep the insulating medium in the housing 111 within a set temperature range, can control the temperature of the electromagnet 112 within a suitable range, so that the electromagnet 112 generates a magnetic field in a predetermined direction and with a predetermined intensity, and further helps to improve the sorting quality.

[0135] In some embodiments of the present application, as Figure 4 shown, the circulating conveying assembly 161 includes an outflow pipeline 1611, a power pump 1612 and a return pipeline 1613. The two ends of the outflow pipeline 1611 are respectively connected between the first interface 113 of the housing 111 and the inlet of the cooling device 162, and the two ends of the return pipeline 1613 are respectively connected between the second interface 114 of the housing 111 and the outlet of the cooling device 162. The power pump 1612 is connected to the outflow pipeline 1611.

[0136] The power pump 1612 may be, but is not limited to, an oil pump.

[0137] The power pump 1612 is used to power the flow of the insulating medium, driving the insulating medium to circulate between the inside of the housing 111, the outflow pipeline 1611, the cooling device 162 and the return pipeline 1613. Thus, the cooling device 162 can cool the circulating insulating medium, enabling the insulating medium inside the housing 111 to be maintained within a set temperature range, and enabling the temperature of the electromagnet 112 to be controlled within a suitable range. Consequently, a magnetic field with a predetermined direction and predetermined intensity can be generated by the electromagnet 112, which is conducive to improving the sorting quality.

[0138] In some embodiments of the present application, as Figure 5 shown, the sorting device 1 further includes a temperature detection device 17. The temperature detection device 17 is provided in the housing 111, and the cooling device 162 is used to cool the insulating medium based on the temperature measured by the temperature detection device 17.

[0139] The temperature detection device 17 can be, but is not limited to, a temperature sensor.

[0140] Exemplarily, when the detected temperature is within the preset temperature range, the cooling intensity of the cooling device 162 remains constant; when the detected temperature is greater than the upper limit value of the preset temperature range, the cooling intensity of the cooling device 162 is increased so that the insulating medium can be cooled to within the preset temperature range as soon as possible; when the detected temperature is less than the lower limit value of the preset temperature range, the cooling intensity of the cooling device 162 is decreased so that the insulating medium can be restored to within the critical temperature range as soon as possible.

[0141] Exemplarily, the cooling device 162 is a water cooler. The cooling intensity of the cooling device 162 is increased by increasing the flow rate of the cooling water input into the water cooler, and the cooling intensity of the cooling device 162 is decreased by decreasing the flow rate of the cooling water input into the water cooler.

[0142] In this way, through the feedback of the temperature around the housing 111 by the temperature detection device 17, it is convenient for the cooling device 162 to regulate the cooling intensity of the insulating medium, enabling the temperature of the electromagnet 112 to be controlled within a suitable range. Consequently, a magnetic field with a predetermined direction and predetermined intensity can be generated by the electromagnet 112, which is conducive to improving the sorting quality.

[0143] In some embodiments of the present application, as Figure 5 shown, a discharge joint 152 is provided at the lower end of the housing 111. The discharge joint 152 is used to discharge the insulating medium inside the housing 111.

[0144] After the sorting device 1 is used up or the insulating medium inside the housing 111 fails, the insulating medium inside the housing 111 is discharged through the discharge joint 152.

[0145] In some embodiments of the present application, asFigures 3 to 5 As shown, the sorting device 1 further includes a mounting frame 18. The electromagnetic field generating device 11 is fixedly mounted on the mounting frame 18, the cooling device 162 is mounted on the mounting frame 18, and the power pump 1612 is mounted on the mounting frame 18.

[0146] In some embodiments of the present application, as Figure 1 and Figure 3 shown, the excitation frequency regulating device 12 includes a rectifying unit 121, a filtering unit 122 and an IGBT (Insulated Gate Bipolar Transistor) module 123. The rectifying unit 121 is used to convert alternating current into direct current; the filtering unit 122 is connected to the output end of the rectifying unit 121 and is used for filtering the direct current; the IGBT module 123 is connected to the output end of the filtering unit 122 and is connected to the input ends of a plurality of electromagnets 112. The IGBT module 123 is used to adjust the intensity and direction of the current after filtering, so as to adjust the intensity and direction of the current input into the plurality of electromagnets 112.

[0147] IGBT is a composite fully controlled voltage-driven power semiconductor device composed of BJT (bipolar junction transistor) and MOS (insulated gate field effect transistor), and has the high input impedance and fast switching characteristics of MOSFET (metal-oxide-semiconductor field effect transistor) and the low saturation voltage drop characteristic of BJT.

[0148] In this way, the excitation frequency regulating device 12 enables the change frequency of the alternating magnetic field generated by the electromagnetic field generating device 11 to reach 50000 Hz or even higher, which is many times larger than the rotational speed of the permanent magnetic field (3000 r / min = 50 Hz), and the induced repulsive force is greater. Moreover, by regulating the induced eddy current through the excitation frequency regulating device 12, the repulsive force received by the non-magnetic metal conductor powder can be accurately controlled.

[0149] The second aspect of the present application provides a sorting system. As Figure 8 shown, the sorting system includes a pulverizer 2 and the sorting device 1 provided in the first aspect. The pulverizer 2 is configured to grind raw materials into mixed powder; the sorting device 1 is arranged downstream of the pulverizer 2 and is used to sort out non-magnetic metal conductor powder from the mixed powder.

[0150] Since the sorting system includes the sorting device 1, the sorting system has all the beneficial effects of the sorting device 1. Therefore, the sorting system has a simple structure, low equipment cost, and can improve the purity of the sorted non-magnetic metal conductor powder and the sorting quality.

[0151] In some embodiments of the present application, as Figure 8As shown, the sorting system further includes a cyclone separator 3 and a bag filter 4. The cyclone separator 3 is provided downstream of the sorting device 1 and is configured to enable the fine powder in the non-magnetic metal conductor powder to be discharged from the upper end of the cyclone separator 3 along with the gas, and the remaining coarse powder in the non-magnetic metal conductor powder to be discharged from the lower end of the cyclone separator 3. The bag filter 4 is provided downstream of the cyclone separator 3 and is configured to filter out the fine powder from the gas carrying the fine powder discharged.

[0152] The non-magnetic metal conductor powder discharged from the sorting device 1 enters the cyclone cavity of the cyclone separator 3 at a certain speed under the transportation of the air flow, changing from a straight-line movement to a spiral movement, that is, the gas and the non-magnetic metal conductor powder rotate together, and are subjected to the combined action of centrifugal force, buoyancy, gravity, and fluid drag force. The fine powder with a small specific gravity is discharged from the upper outlet along with the gas, and the coarse powder with a large specific gravity is discharged from the lower outlet.

[0153] In this way, the fine powder and the coarse powder in the non-magnetic metal conductor powder sorted by the sorting device 1 are separated, facilitating subsequent separate collection. The bag filter 4 is used to filter out the fine powder flowing with the gas to complete the collection of the fine powder.

[0154] In some embodiments of the present application, as Figure 8 shown, the sorting system further includes a raw material bin 5 and a feeder 6. The feeder 6 is connected between the outlet of the raw material bin 5 and the inlet of the grinding mill 2. The raw material bin 5 is used to store raw materials, and the feeder 6 is used to drive the raw materials in the raw material bin 5 to be sent into the grinding mill 2 after passing through the feeder 6.

[0155] In some embodiments of the present application, as Figure 9 shown, there are at least two sorting devices 1. The at least two sorting devices 1 include a first sorting device 1a and a second sorting device 1b. The second sorting device 1b is provided downstream of the first sorting device 1a. The first sorting device 1a is used to sort out the first powder, and the second sorting device 1b is used to sort out the second powder.

[0156] By adjusting the intensity and change frequency of the alternating magnetic field of the sorting device 1, the magnitude of the repulsive force on the non-magnetic metal conductor powder can be adjusted. Therefore, by adjusting the repulsive forces in the first sorting device 1a and the second sorting device 1b to their respective appropriate magnitudes, the first powder and the second powder can be sorted out respectively.

[0157] In this way, the structures of the first sorting device 1a and the second sorting device 1b are the same. Only by adjusting the excitation frequency adjustment device 12 of the two devices can the sorting of the two kinds of powders be realized, without modifying the structure of the device. Therefore, the cost of the device is saved.

[0158] Exemplarily, three or more sorting devices 1 can be provided to sort out three or more kinds of powders respectively.

[0159] In some embodiments of the present application, one of the first powder material and the second powder material is aluminum powder, and the other is copper powder.

[0160] Common materials for batteries are aluminum and copper. This sorting system can sort out aluminum powder and copper powder, making the sorting system applicable to sorting waste materials of batteries. Moreover, the structure of this sorting system is simple and the sorting purity is high.

[0161] Next, specific examples of some embodiments of the present application will be described with reference to the accompanying drawings.

[0162] As a specific example, the sorting device includes an electromagnetic cyclone separator (a structure composed of an acceleration cylinder 13, a cyclone cylinder 14, an electromagnetic field generating device 11, and an excitation frequency regulating device 12), a fuel filling port (a joining connector 151), a cooler (a cooling device 162), an equipment support (a mounting bracket 18), a temperature sensor (a temperature detecting device 17), and an oil drain hole (a discharging connector 152). The electromagnetic cyclone separator includes an exciting electromagnet group (the electromagnetic field generating device 11), an excitation frequency conversion control system (the excitation frequency regulating device 12), and a cyclone cylinder (a structure composed of the acceleration cylinder 13 and the cyclone cylinder 14). The sorting device uses the exciting electromagnet group (the electromagnetic field generating device 11) and the excitation frequency conversion control system (the excitation frequency regulating device 12) to generate a high-frequency and high-intensity alternating magnetic field, which generates an induced eddy current in the non-magnetic metal conductor fine powder that quickly enters the cyclone separation cavity (cyclone cavity 10). The magnetic field induced by the induced eddy current interacts with the alternating electromagnetic field, and the generated repulsive force pushes the non-magnetic metal conductor away from the other materials, and then the structure of the cyclone cavity is used to achieve the sorting purpose.

[0163] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered by the scope of the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A sorting device, characterized in that: include: A cyclone chamber, used for spirally flowing the mixed powder to be sorted, wherein the mixed powder includes non-magnetic metal conductor powder; An electromagnetic field generating device is fixedly arranged on the outer periphery of the cyclone chamber; The excitation frequency regulating device is connected to the electromagnetic field generating device, and is configured to enable the electromagnetic field generating device to generate an alternating magnetic field in the cyclone chamber, and to regulate the intensity and changing frequency of the alternating magnetic field.

2. The sorting device according to claim 1, characterized in that: The sorting equipment also includes an acceleration cylinder having an acceleration chamber, wherein the acceleration chamber is connected to the top of the cyclone chamber, and a feeding portion for the mixed powder to enter the acceleration chamber is provided on the side wall of the acceleration cylinder.

3. The sorting device according to claim 2, characterized in that: The side wall of the accelerating cylinder is connected to the feeding part, and the feeding part has a feeding channel extending along the spiral direction with the central axis of the accelerating cylinder as the spiral central axis. One end of the feeding channel is opened to connect to the accelerating chamber, and the other end is opened as a feeding port.

4. The sorting device according to claim 2, characterized in that: The upper end of the accelerating cylinder is provided with a first discharging portion for discharging the non-magnetic metal conductor powder separated from the mixed powder. The lower end of the cyclone chamber is provided with a second discharge portion for discharging the remaining powder after the non-magnetic metal conductor powder is separated from the mixed powder.

5. The sorting device according to claim 3, characterized in that: The upper end of the accelerating cylinder is provided with a first discharging portion for discharging the non-magnetic metal conductor powder separated from the mixed powder. The lower end of the cyclone chamber is provided with a second discharge portion for discharging the remaining powder after the non-magnetic metal conductor powder is separated from the mixed powder.

6. The sorting device according to claim 5, characterized in that: The first discharge portion has a first discharge channel, one end of the first discharge channel is opened to communicate with the upper end of the acceleration chamber, and the other end is opened to form a first discharge port.

7. The sorting device according to claim 5, characterized in that: The second discharge portion has a second discharge channel, one end of the second discharge channel is opened to communicate with the cyclone chamber, and the other end is opened to form a second discharge port.

8. The sorting device according to any one of claims 2 to 7, characterized in that: The sorting equipment also includes a cyclone barrel, the inner cavity of the cyclone barrel is the cyclone chamber, the cyclone barrel and the acceleration barrel are formed in one piece, and the electromagnetic field generating device is fixedly connected to the outer periphery of the cyclone barrel.

9. The sorting device according to any one of claims 2 to 7, characterized in that: The electromagnetic field generating device defines the cyclone chamber, and the electromagnetic field generating device is fixedly connected to the lower end of the acceleration cylinder.

10. The sorting device according to any one of claims 1 to 7, characterized in that: The electromagnetic field generating device comprises a shell and a plurality of electromagnets arranged in the shell, wherein the plurality of electromagnets are arranged in a Halbach array.

11. The sorting device according to claim 10, characterized in that: The housing is provided with an adding joint, and the adding joint is used to supply an insulating medium into the space between the housing and the electromagnet.

12. The sorting device according to claim 11, characterized in that: The sorting equipment also includes: A circulating conveying assembly, the two ends of which are respectively connected to the first interface and the second interface of the shell, and the circulating conveying assembly is used for the insulating medium in the shell to flow through and flow back into the shell; A cooling device is provided on the circulating conveying component and is used for cooling the insulating medium flowing through the circulating conveying component.

13. The sorting device according to claim 12, characterized in that: The circulation conveying component includes an outflow pipeline, a power pump and a return pipeline. The two ends of the outflow pipeline are respectively connected between the first interface of the shell and the inlet of the cooling device, the two ends of the return pipeline are respectively connected between the second interface of the shell and the outlet of the cooling device, and the power pump is connected to the outflow pipeline.

14. The sorting device according to claim 12, characterized in that: The sorting device further comprises a temperature detection device, which is arranged on the housing. The cooling device is used to cool the insulating medium based on the temperature measured by the temperature detection device.

15. The sorting device according to claim 10, characterized in that: The excitation frequency regulating device comprises: A rectifier unit for converting AC power into DC power; A filter unit, connected to the output end of the rectifying unit, for filtering the direct current; The IGBT module is connected to the output end of the filter unit and to the input end of the multiple electromagnets. The IGBT module is used to adjust the intensity and direction of the current after filtering so as to adjust the intensity and direction of the current input to the multiple electromagnets.

16. The sorting device according to any one of claims 11 to 14, characterized in that: The excitation frequency regulating device comprises: A rectifier unit for converting AC power into DC power; A filter unit, connected to the output end of the rectifying unit, for filtering the direct current; The IGBT module is connected to the output end of the filter unit and to the input end of the multiple electromagnets. The IGBT module is used to adjust the intensity and direction of the current after filtering so as to adjust the intensity and direction of the current input to the multiple electromagnets.

17. A sorting system, characterized in that: include: A grinding machine configured to grind raw materials into the mixed powder; The sorting equipment as described in any one of claims 1 to 16 is arranged downstream of the grinding mill and is used to sort out the non-magnetic metal conductor powder from the mixed powder.

18. The sorting system according to claim 17, characterized in that: The sorting system also includes: A cyclone separator, the cyclone separator being arranged downstream of the sorting device and being configured so that fine powder in the non-magnetic metallic conductor powder is discharged from the upper end of the cyclone separator along with the gas, and the remaining coarse powder in the non-magnetic metallic conductor powder is discharged from the lower end of the cyclone separator; A bag dust collector is disposed downstream of the cyclone separator and is configured to filter out the fine powder from the gas discharged carrying the fine powder.

19. The sorting system according to claim 18, characterized in that: The at least two sorting devices are provided, and the at least two sorting devices include a first sorting device and a second sorting device, the second sorting device is provided downstream of the first sorting device, the first sorting device is used to sort out the first powder, and the second sorting device is used to sort out the second powder.

20. The sorting system according to claim 19, characterized in that: One of the first powder and the second powder is aluminum powder, and the other is copper powder.

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