Fine separation device for copper and aluminum particles of lithium battery
By combining coarse separation devices, particle size separation devices, and fine separation devices, especially wind gravity separators, high-precision separation of copper and aluminum particles from lithium batteries was achieved, solving the problem of insufficient separation precision in existing technologies and improving the recovery rate.
Patent Information
- Application Number
- CN202423195409.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing lithium battery copper-aluminum particle separation devices have poor separation accuracy for mixed particles, resulting in low recovery rates.
By employing a combination of coarse separation devices, particle size separation devices, and multiple fine separation devices, and through preliminary separation, particle size separation, and secondary separation, more refined particle classification and separation are achieved using equipment such as wind gravity separators.
It improves the separation accuracy of mixed particles and the recovery rate of different particles, ensuring the efficient separation and recovery of copper and aluminum particles.
Smart Images
Figure CN223655519U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of particle separation, and particularly relates to a lithium battery copper-aluminum particle fine separation device. BACKGROUND
[0002] The lithium battery copper-aluminum particle fine separation device is used for separating different particles mixed together, for example, separating copper particles and aluminum particles in copper-aluminum mixed particles, so as to recycle the copper particles and the aluminum particles. However, in the related art, the lithium battery copper-aluminum particle fine separation device has poor separation precision for the mixed particles, and thus the recovery rate of different particles in the mixed particles is low. CONTENT
[0003] The application aims to provide a lithium battery copper-aluminum particle fine separation device, and aims to solve the problem of low recovery rate of different particles in mixed particles due to poor separation precision of the lithium battery copper-aluminum particle fine separation device for the mixed particles.
[0004] To achieve the above-mentioned purpose, the application adopts the following technical scheme:
[0005] The application provides a lithium battery copper-aluminum particle fine separation device, which comprises a coarse separation device, a particle size sorting device and a plurality of fine separation devices. The coarse separation device is used for preliminarily separating mixed particles of first particles and second particles to obtain first target mixed particles after part of the first particles and part of the second particles are separated out. The coarse separation device has a first discharge port. The feeding port of the particle size sorting device is in communication with the first discharge port, and the first target mixed particles can enter the particle size sorting device through the first discharge port. The particle size sorting device is used for sorting the first target mixed particles into a plurality of groups of second target mixed particles with different particle sizes. The particle size sorting device has a plurality of first discharge ports. The feeding port of one fine separation device is in communication with one first discharge port, and one group of second target mixed particles enters one fine separation device through one first discharge port. The fine separation device is used for further separating the second target mixed particles.
[0006] The lithium battery copper-aluminum particle fine separation device provided by the application can separate part of the first particles and the second particles in the mixed particles through the coarse separation device, and the remaining part of the first particles and the second particles are still mixed together to form the first target mixed particles. The first target mixed particles enter the particle size sorting device through the first discharge port, and the particle size sorting device sorts the first target mixed particles into a plurality of groups of second target mixed particles with different particle sizes. The plurality of groups of second target mixed particles enter the plurality of fine separation devices through the plurality of first discharge ports, and different fine separation devices further separate the second target mixed particles with different particle sizes.
[0007] Since the first target mixed particles are divided into second target mixed particles of different sizes, the classification of the mixed particles can be more accurate, and the second target mixed particles of different sizes can be separated by different fine separation devices, so that the separation of the mixed particles is more accurate, and the recovery rate of different particles in the mixed particles is improved.
[0008] In some embodiments, the fine separation device includes an air density separator.
[0009] In some embodiments, the plurality of second target mixed particles includes a first group of target mixed particles, a second group of target mixed particles, and a third group of target mixed particles, the first group of target mixed particles has a smaller size than the second group of target mixed particles, and the second group of target mixed particles has a smaller size than the third group of target mixed particles; the plurality of fine separation devices includes a first air density separator, a second air density separator, and a third air density separator; the first air density separator is used to separate the first group of target mixed particles, the second air density separator is used to separate the second group of target mixed particles, and the third air density separator is used to separate the third group of target mixed particles; the air flow of the first air density separator is smaller than the air flow of the second air density separator, and the air flow of the second air density separator is smaller than the air flow of the third air density separator.
[0010] In some embodiments, the fine separation device further includes a buffer bin and a feeder, the inlet of the buffer bin is in communication with the first outlet, and the inlet of the feeder is in communication with the outlet of the buffer bin, and the outlet of the feeder is in communication with the inlet of the air density separator.
[0011] In some embodiments, the size sorting device includes a vibrating screen.
[0012] In some embodiments, the coarse separation device includes a double-body gravity separator.
[0013] In some embodiments, the coarse separation device includes a transfer bin, a distributor, and a plurality of double-body gravity separators, the transfer bin is used to place the mixed particles; the distributor includes a distribution inlet and a plurality of distribution outlets, the distribution inlet is in communication with the outlet of the transfer bin; the inlet of one double-body gravity separator is in communication with one distribution outlet, and one double-body gravity separator has a first discharge port.
[0014] In some embodiments, the lithium battery copper-aluminum particle fine separation device further includes a return air duct, a dust removal device, and an induced draft fan, the buffer bin, the size sorting device, and the transfer bin are in communication with the inlet of the return air duct, and the return air duct is used to transport waste gas in the buffer bin, the size sorting device, and the transfer bin; the inlet of the dust removal device is in communication with the outlet of the return air duct, and is used to remove dust from the waste gas entering the dust removal device; the induced draft fan is connected to the gas outlet of the dust removal device.
[0015] In some embodiments, the dust removal device comprises a cyclone collector, an air guide pipe and a dust collector, the inlet of the cyclone collector is communicated with the outlet of the air return pipe; the inlet of the air guide pipe is communicated with the gas outlet of the cyclone collector; the inlet of the dust collector is communicated with the outlet of the air guide pipe, and the gas outlet of the dust collector is communicated with the induced draft fan.
[0016] In some embodiments, the dust removal device further comprises an air blocking discharging device and a collecting discharging pipe, the air blocking discharging device is connected to the solid outlet of the cyclone collector; one end of the collecting discharging pipe is communicated with the air blocking discharging device, and the other end of the collecting discharging pipe is communicated with the buffer bin. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0018] Figure 1 The structure schematic diagram of the lithium battery copper-aluminum particle fine separation device provided by the embodiments of the present application is shown in the figure.
[0019] Figure 2 The structure schematic diagram of the air density separator in the lithium battery copper-aluminum particle fine separation device shown in the figure is shown in the figure. Figure 1
[0020] Figure 3 The structure schematic diagram of the lithium battery copper-aluminum particle fine separation device in the relative visual angle is shown in the figure. Figure 1
[0021] Figure 4 One of the partial structure schematic diagrams of the lithium battery copper-aluminum particle fine separation device is shown in the figure. Figure 1
[0022] Figure 5 The second partial structure schematic diagram of the lithium battery copper-aluminum particle fine separation device is shown in the figure. Figure 1 LIST OF REFERENCE NUMERALS
[0023] 10, coarse separation device; 10A, first discharging port; 20, particle size separation device; 20A, first discharging port; 30, fine separation device;
[0024]
[0025] 1A, feeding device; 1, mixed material inlet; 2, elevator; 3, mixed material outlet; 4, transfer bin; 5A, second level meter; 5B, first level meter; 6, distributor; 7, double-body gravity separator; 8, second discharge port; 8A, third discharge port; 9, vibrating screen; 10, buffer bin; 11, feeder; 12, sorting feed inlet; 13, pneumatic gravity sorting machine; 13A, first pneumatic gravity sorting machine; 13B, second pneumatic gravity sorting machine; 13C, third pneumatic gravity sorting machine; 14, first particle discharge port; 15, second particle discharge port; 16, first discharge device; 17, second discharge device; 18, air return pipeline; 19, cyclone collector; 20, air guide pipeline; 21, closed air discharge device; 22, dust collector; 23, air blower; 24, material collection discharge pipe. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0027] The terms "first", "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.
[0028] In the description of the present application, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.
[0029] The present application provides a lithium battery copper-aluminum particle fine separation device. The lithium battery copper-aluminum particle fine separation device is used for separating mixed particles, so as to recycle various different particles in the mixed particles and improve the utilization rate of materials. The lithium battery copper-aluminum particle fine separation device provided by the present application can be used for separating copper-aluminum particles in lithium batteries, and can also be used for separating other mixed particles, which is not limited in the present application.
[0030] The present application is described by taking the lithium battery copper-aluminum particle fine separation device for separating copper-aluminum particles in lithium batteries as an example.
[0031] Please refer to Figure 1 , Figure 1A structure schematic diagram of a lithium battery copper-aluminum particle fine separation device provided by an embodiment of the present application is shown. The lithium battery copper-aluminum particle fine separation device includes a coarse separation device 10, a particle size sorting device 20, and a plurality of fine separation devices 30. The coarse separation device 10 is used to preliminarily separate the mixed particles of the first particles and the second particles to obtain the first target mixed particles after part of the first particles and part of the second particles are separated.
[0032] It should be noted that the mixed particles are the mixed particles of the first particles and the second particles. For example, the first particles are copper particles, and the second particles are aluminum particles. In addition, the mixed particles can also include other particles in addition to the first particles and the second particles.
[0033] Part of the first particles and part of the second particles in the mixed particles can be separated out by the coarse separation device 10, for example, the particles with relatively large mass or particle size in the first particles are separated out, and the particles with relatively large mass or particle size in the second particles are separated out. The remaining first particles and second particles cannot be separated out by the coarse separation device, and the part of the first particles and the second particles are still mixed together to form the first target mixed particles, which need to be further separated.
[0034] The coarse separation device 10 has a first discharge port 10A. The feed port of the particle size sorting device 20 is in communication with the first discharge port 10A, and the first target mixed particles can enter the particle size sorting device 20 through the first discharge port 10A. The particle size sorting device 20 is used to sort the above-mentioned first target mixed particles into a plurality of groups of second target mixed particles with different particle sizes.
[0035] For example, the particle size sorting device 20 can include a vibrating screen 9. By the size of the aperture of the different screen holes on the vibrating screen 9, the particles with the same aperture size as the vibrating screen 9 will fall from the corresponding aperture during the vibration of the first target mixed particles on the vibrating screen 9, so that the first target mixed particles can be divided into a plurality of groups of second target mixed particles with different particle sizes.
[0036] It should be noted that during the process of screening the first target mixed particles into a plurality of groups of second target mixed particles with different particle sizes by the vibrating screen 9, the aperture of the screen hole of the vibrating screen 9 can be adjusted according to the specific size of the first target mixed particles to ensure the accuracy of the screening.
[0037] For another example, the particle size sorting device 20 can also be other devices that can divide the first target mixed particles into a plurality of groups of second target mixed particles with different particle sizes, which are not limited by the present application.
[0038] The particle size sorting device 20 has a plurality of first discharge ports 20A. The feed port of one of the plurality of fine sorting devices 30 is in communication with one of the first discharge ports 20A, and a group of second target mixed particles enters the one fine sorting device 30 through the one first discharge port 20A, and the fine sorting device 30 is used to separate the second target mixed particles again.
[0039] After the coarse sorting device 10 separates a part of the first particles and the second particles in the mixed particles, the remaining part of the first particles and the second particles are still mixed together to form first target mixed particles. The first target mixed particles enter the particle size sorting device 20 through the first discharge port 10A, and the particle size sorting device 20 sorts the first target mixed particles into a plurality of groups of second target mixed particles with different particle sizes. The plurality of groups of second target mixed particles enter the plurality of fine sorting devices 30 through the plurality of first discharge ports 20A, respectively, and the different fine sorting devices 30 separate the second target mixed particles with different particle sizes again.
[0040] Since the first target mixed particles are separated into a plurality of groups of second target mixed particles with different particle sizes, the classification of the mixed particles can be more accurate, and then the second target mixed particles with different particle sizes are separated again by different fine sorting devices 30, so that the separation accuracy of the mixed particles is higher, and the recovery rate of different particles in the mixed particles is improved.
[0041] In some embodiments, please refer to Figure 2 , Figure 2 For Figure 1 The structure diagram of the air-type specific gravity sorting machine in the lithium battery copper-aluminum particle fine sorting device is shown. The fine sorting device 30 can include the air-type specific gravity sorting machine 13.
[0042] The air-type specific gravity sorting machine 13 controls the speed of the upward airflow in it to control the motion state of the particles with different densities (for example, the first particles and the second particles) in the second target mixed particles entering the air-type specific gravity sorting machine 13, so that some particles float and some particles sink, thereby separating these particles with different densities.
[0043] For example, the first particles are copper particles, and the second particles are aluminum particles. Since the specific gravities of copper and aluminum are different, the air-type specific gravity sorting machine 13 can be accurately controlled to achieve efficient separation of the copper particles and the aluminum particles, thereby achieving the purpose of improving the sorting efficiency and effect.
[0044] In other embodiments, the fine sorting device 30 can also be other devices capable of separating the first particles and the second particles, such as a cyclone airflow grading screening device, etc.
[0045] In some embodiments, the plurality of groups of second target mixed particles includes a first group of target mixed particles, a second group of target mixed particles, and a third group of target mixed particles, the particle size of the first group of target mixed particles is smaller than the particle size of the second group of target mixed particles, and the particle size of the second group of target mixed particles is smaller than the particle size of the third group of target mixed particles.
[0046] That is, the first target mixed particles are divided into three groups of particles with different particle sizes. For example, the particle size of the first group of target mixed particles ranges from 35 to 55 mesh, the particle size of the second group of target mixed particles ranges from 56 to 90 mesh, and the particle size of the third group of target mixed particles ranges from 91 to 150 mesh.
[0047] The plurality of fine separation devices 30 includes a first air density separator 13A, a second air density separator 13B, and a third air density separator 13C; the first air density separator 13A is used for separating the first group of target mixed particles, the second air density separator 13B is used for separating the second group of target mixed particles, and the third air density separator 13C is used for separating the third group of target mixed particles; the air power of the first air density separator 13A is smaller than the air power of the second air density separator 13B, and the air power of the second air density separator 13B is smaller than the air power of the third air density separator 13C.
[0048] That is, according to the particle size of the second target mixed particles, the air power of the corresponding air density separator 13 is matched with the particle size of the second target mixed particles, so that the second target mixed particles can be separated more accurately to improve the separation accuracy and particle recovery rate.
[0049] In some embodiments, please continue to refer to Figure 1 , the fine separation device 30 further includes a buffer bin 10 and a feeder 11, the feeding port of the buffer bin 10 is in communication with the first discharge port 20A; the feeding end of the feeder 11 is in communication with the discharge port of the buffer bin 10, and the discharge end of the feeder 11 is in communication with the feeding port (named as the separation feeding port 12) of the air density separator 13.
[0050] That is, any one of the plurality of fine separation devices 30 includes a buffer bin 10 and a feeder 11. The feeding ports of the plurality of buffer bins 10 correspond one-to-one to the plurality of first discharge ports 20A, the feeding port of one buffer bin 10 is in communication with one first discharge port 20A, the discharge port of one buffer bin 10 is in communication with the feeding end of one feeder 11, and the discharge end of one feeder 11 is in communication with the separation feeding port 12 of one air density separator 13.
[0051] The first target mixed particles are classified by the particle size sorting device 20 according to different particle sizes to form a plurality of groups of second target mixed particles, and one group of second target mixed particles enters one buffer bin 10 through one first discharge port 20A. The second target mixed particles in one buffer bin 10 are conveyed to one air-type specific gravity sorting machine 13 by one feeder 11 for separation.
[0052] In this way, the second target mixed particles classified by the particle size sorting device 20 can be buffered in the buffer bin 10 before entering the air-type specific gravity sorting machine 13, so that the separation accuracy of the air-type specific gravity sorting machine 13 for the second target mixed particles can be ensured.
[0053] Specifically, when the second target mixed particles in the buffer bin 10 reach the first preset amount, the feeder 11 is started to convey the second target mixed particles in the buffer bin 10 to the air-type specific gravity sorting machine 13. When the second target mixed particles in the buffer bin 10 decrease to the second preset amount, the feeder 11 is stopped to stop conveying the second target mixed particles to the air-type specific gravity sorting machine 13. That is, the air-type specific gravity sorting machine 13 is intermittently fed to ensure that the air-type specific gravity sorting machine 13 can sufficiently separate the second target mixed particles entering the air-type specific gravity sorting machine 13. The second preset amount is less than the first preset amount.
[0054] In some embodiments, the first preset amount and the second preset amount can be the material level of the buffer bin 10 or the weight of the buffer bin 10. For example, the buffer bin 10 is provided with a first level sensor 5B. The first level sensor 5B is used to detect the material level in the buffer bin 10. That is, the first preset amount and the second preset amount are the material level of the buffer bin 10.
[0055] In some embodiments, the feeding port of the buffer bin 10 can be provided with a first electric valve. When the second target mixed particles in the buffer bin 10 reach the first preset amount, the first electric valve is opened to facilitate conveying the second target mixed particles in the buffer bin 10 to the air-type specific gravity sorting machine 13. When the second target mixed particles in the buffer bin 10 decrease to the second preset amount, the first electric valve is closed to prevent the second target mixed particles in the buffer bin 10 from entering the air-type specific gravity sorting machine 13.
[0056] In some embodiments, the feeder 11 can be a vibrating feeder or a screw conveyor, etc. The present application does not make specific limitations in this regard.
[0057] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 ,Figure 3 For Figure 1 The structure diagram of the lithium battery copper-aluminum particle fine separation device under a relative viewing angle is shown in FIG. 13. The wind power specific gravity sorting machine 13 further has a first particle discharge port 14 and a second particle discharge port 15.
[0058] The lithium battery copper-aluminum particle fine separation device further includes a first discharge device 16 and a second discharge device 17. The first particles separated by the wind power specific gravity sorting machine 13 are discharged through the first particle discharge port 14 to the first discharge device 16, and are conveyed by the first discharge device 16 to a first particle collection container for recycling. The second particles separated by the wind power specific gravity sorting machine 13 are discharged through the second particle discharge port 15 to the second discharge device 17, and are conveyed by the second discharge device 17 to a second particle collection container for recycling.
[0059] The first discharge device 16 can be a screw conveyor, a belt conveyor, etc., and the present application does not make specific limitations thereon. The second discharge device 17 can also be a screw conveyor, a belt conveyor, etc., and the present application does not make specific limitations thereon.
[0060] In some embodiments, the coarse separation device 10 can include a double-body gravity separator 7. The double-body gravity separator 7 is based on the working principle of double-body gravity classification, and is based on the different settling speeds of particles of different densities, particle sizes, or shapes in a medium, so that different particles can be effectively separated by controlling the flow speed of the medium and the spacing between the particles.
[0061] Specifically, the first particles and the second particles in the mixed particles are preliminarily separated on a rough working surface that reciprocates by utilizing the different specific gravities of the first particles and the second particles and the self-classification characteristics thereof. The double-body gravity separator 7 has the characteristics of high separation capacity and simple maintenance.
[0062] In some embodiments, please continue to refer to Figure 1 The coarse separation device 10 includes a transfer bin 4, a distributor 6, and a plurality of double-body gravity separators 7. The transfer bin 4 is used to place mixed particles; the distributor 6 includes a distribution inlet and a plurality of distribution outlets, and the distribution inlet is in communication with an outlet of the transfer bin 4; among the plurality of double-body gravity separators 7, an inlet of one double-body gravity separator 7 is in communication with one distribution outlet, and one double-body gravity separator 7 has one first discharge port 10A.
[0063] By arranging the distributor 6, the mixed particles in the transfer bin 4 can be distributed to the plurality of double-body gravity separators 7, so that the mixed particles are preliminarily separated by the plurality of double-body gravity separators 7. In this way, the plurality of double-body gravity separators 7 can simultaneously preliminarily separate the mixed particles, thereby improving the efficiency of preliminarily separating the mixed particles.
[0064] The first discharge port 10A of each of the plurality of double-body gravity separators 7 is in communication with the feed port of the particle size sorting device 20, so that the first target mixed particles separated by the plurality of double-body gravity separators 7 are all fed into the particle size sorting device 20 for particle size sorting.
[0065] In some embodiments, the lithium battery copper-aluminum particle fine separation device further comprises a feeding device 1A. The discharge end of the feeding device 1A is in communication with the transfer bin 4, and is used to deliver the mixed particles to the transfer bin 4.
[0066] In some examples, the feeding device 1A can be a hoist 2. The hoist 2 has a mixed material inlet 1 and a mixed material outlet 3. The mixed particles can be placed into the mixed material inlet 1 by a forklift or manually, and then delivered upward by the hoist 2 to the mixed material outlet 3, so that the mixed material enters the transfer bin 4 through the mixed material outlet 3.
[0067] In other examples, the feeding device 1A can also be a belt conveyor or the like.
[0068] In some embodiments, the coarse separation device 10, the particle size sorting device 20, and the fine separation device 30 are arranged in sequence from top to bottom, so that the materials can be conveniently transferred between the coarse separation device 10, the particle size sorting device 20, and the fine separation device 30.
[0069] In some embodiments, the delivery of the mixed particles from the transfer bin 4 to the double-body gravity separator 7 can also be achieved by intermittent feeding of the double-body gravity separator 7. Specifically, a second electric valve can be arranged at the discharge port of the transfer bin 4. When the mixed particles delivered from the feeding device 1A into the transfer bin 4 reach a third preset amount, the second electric valve is opened, so that the mixed particles in the transfer bin 4 enter the plurality of double-body gravity separators 7 through the distributor 6, so as to preliminarily separate the mixed particles by the double-body gravity separators 7. When the mixed particles in the transfer bin 4 decrease to a fourth preset amount, the second electric valve is closed, i.e., the feeding of the double-body gravity separator 7 is stopped. The fourth preset amount is less than the third preset amount.
[0070] In some embodiments, the third preset amount and the fourth preset amount can be the material level of the transfer bin 4, or the weight of the transfer bin 4. For example, the transfer bin 4 is provided with a second level detector 5A. The second level detector 5A is used to detect the material level in the transfer bin 4. That is, the third preset amount and the fourth preset amount are the material level of the transfer bin 4.
[0071] In some embodiments, please refer to Figure 4 and Figure 5 , Figure 4 for Figure 1 a partial structural schematic diagram of a lithium battery copper-aluminum particle fine separation device, Figure 5 for Figure 1Part structure diagram two of the lithium battery copper-aluminum particle fine separation device. The coarse separation device 10 further comprises a second discharge port 8 and a third discharge port 8A. Specifically, the double-body gravity separator 7 has the second discharge port 8 and the third discharge port 8A.
[0072] The second discharge port 8 is connected with the first discharge device 16, and is used to transport the first particles separated by the coarse separation device 10 to the first discharge device 16, and then to the first particle collection container by the first discharge device 16. The third discharge port 8A is connected with the second discharge device 17, and is used to transport the second particles separated by the coarse separation device 10 to the second discharge device 17, and then to the second particle collection container by the second discharge device 17.
[0073] In some embodiments, the lithium battery copper-aluminum particle fine separation device further comprises an air return pipeline 18, a dust removal device, and an induced draft fan 23. The buffer bin 10, the particle size sorting device 20, and the transfer bin 4 are all in communication with the inlet of the air return pipeline 18, and the air return pipeline 18 is used to transport the waste gas in the buffer bin 10, the particle size sorting device 20, and the transfer bin 4. The inlet of the dust removal device is in communication with the outlet of the air return pipeline 18, and is used to remove dust from the waste gas entering the dust removal device. The induced draft fan 23 is connected to the gas outlet of the dust removal device.
[0074] It should be noted that dust will be raised during the transportation of the mixed particles between the buffer bin 10, the double-body gravity separator 7, the particle size sorting device 20, the transfer bin 4, and the pneumatic specific gravity separator 13. At this time, the waste gas in the buffer bin 10, the particle size sorting device 20, and the transfer bin 4 can be drawn to the dust removal device through the air return pipeline 18 by the induced draft fan 23. During this process, the mixed particles in the dust will also enter the dust removal device, and the mixed particles in the dust will be further collected by the dust removal device to avoid environmental pollution and waste of materials.
[0075] In some examples, since the dust is usually located above the buffer bin 10, the particle size sorting device 20, and the transfer bin 4, the inlet of the air return pipeline 18 can be connected with the upper end of the buffer bin 10, the upper end of the particle size sorting device 20, and the upper end of the transfer bin 4.
[0076] In some embodiments, the dust removal device comprises a cyclone collector 19, an air guide pipeline 20, and a dust collector 22. The inlet of the cyclone collector 19 is in communication with the outlet of the air return pipeline 18; the inlet of the air guide pipeline 20 is in communication with the gas outlet of the cyclone collector 19; the inlet of the dust collector 22 is in communication with the outlet of the air guide pipeline 20, and the gas outlet of the dust collector 22 is in communication with the induced draft fan 23.
[0077] Through the arrangement of the cyclone collector 19 and the dust collector 22, under the action of the induced draft fan 23, the dust is first introduced into the cyclone collector 19, under the action of the cyclone collector 19, the mixed particles with relatively heavy weight in the dust are thrown on the inner wall surface of the cyclone collector 19 by centrifugal force and fall to the bottom of the cyclone collector 19 along the inner wall surface of the cyclone collector 19. And the mixed particles with relatively light weight in the dust are introduced into the dust collector 22 through the air duct 20 under the action of the induced draft fan 23, and are filtered in the dust collector 22. In this way, the mixed particles in the dust can be better recovered to improve the recovery efficiency of the mixed particles. And the exhaust gas filtered by the dust collector 22 is relatively clean, and the environmental pollution is relatively small after being discharged by the induced draft fan 23.
[0078] In some examples, the dust collector 22 can be a cyclone dust collector, a filter core dust collector, a cloth bag dust collector, an electric dust collector, etc., which is not limited in the present application.
[0079] In some embodiments, the dust removal device further comprises an air closing discharger 21 and a material collecting discharge pipe 24. The air closing discharger 21 is connected to the solid outlet of the cyclone collector 19; one end of the material collecting discharge pipe 24 communicates with the air closing discharger 21, and the other end of the material collecting discharge pipe 24 communicates with the buffer bin 10.
[0080] In this way, when the mixed particles collected at the bottom of the cyclone collector 19 reach a certain amount, the air closing discharger 21 can be opened, and the mixed particles collected at the bottom of the cyclone collector 19 are transported to the buffer bin 10 through the material collecting discharge pipe 24, and then to the wind power specific gravity separator 13 for further separation into first particles and second particles. In this way, the mixed particles can be separated to the greatest extent, and the separation efficiency is improved.
[0081] In some examples, since the particle size of the particles in the dust is usually small, the particle size of the mixed particles collected at the bottom of the cyclone collector 19 is also small. Therefore, the other end of the material collecting discharge pipe 24 can communicate with the buffer bin 10 corresponding to the first wind power specific gravity separator 13A. In this way, the wind power of the wind power specific gravity separator 13 can be matched with the mixed particles collected at the bottom of the cyclone collector 19, so as to improve the separation precision of the mixed particles.
[0082] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A lithium battery copper-aluminum particle separation device, characterized in that, include: A coarse separation device is used to perform preliminary separation of the mixture of first particles and second particles to obtain a first target mixture of particles after separating a portion of the first particles and a portion of the second particles. The coarse separation device has a first discharge port; A particle size sorting device, wherein the feed inlet of the particle size sorting device is connected to the first discharge outlet, and the first target mixed particles can enter the particle size sorting device through the first discharge outlet. The particle size sorting device is used to sort the first target mixed particles into multiple groups of second target mixed particles with different particle sizes. The particle size sorting device has multiple first discharge outlets. Multiple separation devices are provided, with the inlet of one separation device connected to a first outlet. A group of second target mixed particles enters one of the separation devices through the first outlet, and the separation device is used to further separate the second target mixed particles.
2. The lithium battery copper-aluminum particle separation device according to claim 1, characterized in that, The fine separation device includes a wind-powered gravity separator.
3. The lithium battery copper-aluminum particle separation device according to claim 1, characterized in that, The multiple sets of second target mixed particles include a first set of target mixed particles, a second set of target mixed particles, and a third set of target mixed particles. The particle size of the first set of target mixed particles is smaller than that of the second set of target mixed particles, and the particle size of the second set of target mixed particles is smaller than that of the third set of target mixed particles. The plurality of separation devices include a first wind gravity separator, a second wind gravity separator, and a third wind gravity separator; the first wind gravity separator is used to separate a first group of target mixed particles, the second wind gravity separator is used to separate a second group of target mixed particles, and the third wind gravity separator is used to separate a third group of target mixed particles. The wind force of the first wind gravity separator is less than that of the second wind gravity separator, and the wind force of the second wind gravity separator is less than that of the third wind gravity separator.
4. The lithium battery copper-aluminum particle separation device according to claim 2 or 3, characterized in that, The precision analysis device also includes: A buffer hopper, wherein the inlet of the buffer hopper is connected to the first outlet; The feeder has its inlet end connected to the outlet of the buffer hopper and its outlet end connected to the inlet of the air-powered gravity separator.
5. The lithium battery copper-aluminum particle separation device according to claim 1, characterized in that, The particle size sorting device includes a vibrating screen.
6. The lithium battery copper-aluminum particle separation device according to claim 1, characterized in that, The coarse separation device includes a dual gravity separator.
7. The lithium battery copper-aluminum particle separation device according to claim 4, characterized in that, The coarse separation device includes: A transfer hopper for holding mixed particles; The distributor includes a dispensing inlet and multiple dispensing outlets, and the dispensing inlet is connected to the outlet of the transfer silo. Multiple dual gravity separators, one of which has an inlet connected to a material outlet, and one of which has a first discharge port.
8. The lithium battery copper-aluminum particle separation device according to claim 7, characterized in that, Also includes: The return air duct is connected to the inlet of the buffer silo, the particle size separation device, and the transfer silo. The return air duct is used to transport the waste gas in the buffer silo, the particle size separation device, and the transfer silo. A dust removal device, wherein the inlet of the dust removal device is connected to the outlet of the return air duct, is used to remove dust from the exhaust gas entering the dust removal device; An induced draft fan is connected to the gas outlet of the dust removal device.
9. The lithium battery copper-aluminum particle separation device according to claim 8, characterized in that, The dust removal device includes: A cyclone collector, wherein the inlet of the cyclone collector is connected to the outlet of the return air duct; An air guide duct, the inlet of which is connected to the gas outlet of the cyclone collector; The dust collector has its inlet connected to the outlet of the air duct, and its gas outlet connected to the induced draft fan.
10. The lithium battery copper-aluminum particle separation device according to claim 9, characterized in that, The dust removal device also includes: A closed-loop discharge device is connected to the solid outlet of the cyclone collector; The material collection and discharge pipe has one end connected to the closed-loop discharge device and the other end connected to the buffer silo.