Screening equipment and battery production system
By designing a screening device that utilizes a conveying mechanism and multi-mesh screen segments to separate zirconium balls, the problems of difficulty and inaccuracy in manual separation are solved, achieving efficient and accurate zirconium ball separation and ensuring the stability of the performance of lithium manganese iron phosphate finished products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-04-14
AI Technical Summary
Existing methods for manually separating zirconium balls are difficult to implement and prone to inaccurate separation, which affects the grinding effect and particle size distribution.
Design a screening device that uses a conveying mechanism to drive mixed zirconium balls through screen segments with different mesh sizes for step-by-step screening. The zirconium balls enter different collection buckets respectively, achieving efficient and accurate separation.
This improved the efficiency and accuracy of zirconium ball separation, ensuring the stability and consistency of the performance of the finished lithium manganese iron phosphate product.
Smart Images
Figure CN224114478U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery production technology, and in particular to a screening device and a battery production system. Background Technology
[0002] Lithium manganese iron phosphate (LMP) is a cathode material used in lithium-ion batteries, and the solid-state process is a common method for its preparation. The performance of the final product during the solid-state LMP preparation process is affected by the particle size, making it crucial to control the grinding parameters to manage particle size. Current effective methods utilize zirconium balls of different sizes and proportions for grinding to improve particle gradation, control particle size distribution, and increase grinding efficiency. After grinding, the zirconium balls of different sizes mixed together need to be separated to ensure that different sizes are used in the next grinding cycle, thus guaranteeing optimal grinding results.
[0003] Currently, zirconium balls of different sizes are typically separated manually using sieves. However, manual separation is difficult and prone to inaccuracies, leading to size deviations in the zirconium balls during subsequent uses, which affects the grinding effect and the particle size distribution. Utility Model Content
[0004] Based on this, this application provides a screening device and a battery production system to solve the problems of separation difficulty and inaccurate separation that exist in the manual separation of zirconium balls in related technologies.
[0005] In a first aspect, embodiments of this application provide a screening device, comprising:
[0006] The outer shell has a receiving cavity, with a feed inlet communicating with the receiving cavity at the top of the first end of the outer shell, and a discharge outlet communicating with the receiving cavity at the bottom of the second end of the outer shell;
[0007] The screen includes a first screen segment, a second screen segment, and a third screen segment, which are arranged sequentially from a first end to a second end; the mesh count of the first screen segment is greater than that of the second screen segment, and the mesh count of the second screen segment is greater than that of the third screen segment.
[0008] A conveying mechanism, mounted on the housing, is configured to move the material in the receiving cavity from the first end to the second end;
[0009] The first collection bucket, the second collection bucket, and the third collection bucket are detachably installed on the bottom of the outer casing. The first collection bucket, the second collection bucket, and the third collection bucket are connected to the receiving cavity. The first collection bucket is positioned opposite to the first screen segment, the second collection bucket is positioned opposite to the second screen segment, and the third collection bucket is positioned opposite to the third screen segment.
[0010] In one possible implementation, the screening device further includes a fourth collection tank, which is detachably mounted on the housing and connected to the discharge port.
[0011] In one possible implementation, the conveying mechanism includes a drive member and a conveying rod, the conveying rod passing through the receiving cavity, the side wall of the conveying rod being provided with helical blades, the conveying rod extending from a first end to a second end, the drive member being mounted on the housing and located outside the receiving cavity, and the drive member being connected to the end of the conveying rod.
[0012] In one possible implementation, the screening device further includes a cover that covers the outside of the drive unit and is fixed to the housing.
[0013] In one possible implementation, the screening device also includes a vibration mechanism mounted on the housing.
[0014] In one possible implementation, the bottom of the outer casing is provided with a first discharge hopper, a second discharge hopper, and a third discharge hopper;
[0015] The first discharge hopper, the second discharge hopper, and the third discharge hopper each have a large diameter end and a small diameter end that are arranged opposite to each other. The large diameter end of the first discharge hopper is opposite to the position of the first screen section, the large diameter end of the second discharge hopper is opposite to the position of the second screen section, and the large diameter end of the third discharge hopper is opposite to the position of the third screen section.
[0016] The first collection bucket is detachably installed at the small diameter end of the first discharge hopper, the second collection bucket is detachably installed at the small diameter end of the second discharge hopper, and the third collection bucket is detachably installed at the small diameter end of the third discharge hopper.
[0017] In one possible implementation, there are multiple first discharge hoppers arranged side-by-side along a direction from the first end to the second end, and each first discharge hopper is equipped with a first collection bucket; and / or,
[0018] There are multiple second discharge hoppers, arranged side by side along the direction from the first end to the second end, and each second discharge hopper is equipped with a second collection bucket; and / or,
[0019] There are multiple third discharge hoppers, which are arranged side by side along the direction from the first end to the second end, and each third discharge hopper is equipped with a third collection bucket.
[0020] In one possible implementation, the outer casing includes a housing and a door, the interior of which is formed a receiving cavity, and the housing is provided with an opening communicating with the receiving cavity;
[0021] The door can be detachably installed on the housing to close the opening.
[0022] In one possible implementation, the bottom of the casing is provided with multiple legs, the bottom of each leg extending beyond the first collection bucket, the second collection bucket, and the third collection bucket, respectively.
[0023] Secondly, embodiments of this application provide a battery production system, including the screening equipment described above.
[0024] The screening equipment and battery production system provided in this application include a shell, a screen, a conveying mechanism, a first collection tank, a second collection tank, and a third collection tank. Mixed zirconium balls can enter the receiving cavity of the shell through the feed inlet. The conveying mechanism can move the mixed zirconium balls from the first end to the second end of the shell. As the mixed zirconium balls move within the receiving cavity, they sequentially pass through the first, second, and third screen sections of the screen. The mesh size of the first screen section is larger than that of the second screen section, and the mesh size of the second screen section is larger than that of the third screen section. Broken zirconium balls can pass through the first screen section into the first collection tank, small-sized zirconium balls can pass through the second screen section into the second collection tank, and large-sized zirconium balls can pass through the third screen section into the third collection tank. Large foreign objects in the mixed zirconium balls can flow out of the shell through the discharge port at the bottom of the second end. Screening the mixed zirconium balls using this equipment is more efficient and accurate than manual separation, which helps ensure the performance of the finished lithium manganese iron phosphate product. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the structure of a screening device provided in an embodiment of this application;
[0027] Figure 2 This is a schematic diagram of another screening device provided in an embodiment of this application.
[0028] Explanation of reference numerals in the attached figures:
[0029] 100 - Outer shell; 110 - Receiving cavity; 121 - First end; 122 - Second end; 131 - Feed inlet; 132 - Discharge outlet; 141 - First discharge hopper; 142 - Second discharge hopper; 143 - Third discharge hopper; 150 - Outer shell; 160 - Door; 170 - Legs;
[0030] 200-sieve;
[0031] 300 - Conveying mechanism; 310 - Driving component; 320 - Conveying rod; 321 - Spiral blade;
[0032] 410 - First collection bucket; 420 - Second collection bucket; 430 - Third collection bucket; 440 - Fourth collection bucket;
[0033] 500-coverage;
[0034] 600 - Vibration mechanism. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0037] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0038] The terms “first,” “second,” and “third” (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0039] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.
[0040] In existing technologies, using zirconium balls of different sizes and proportions for grinding can effectively control the particle size of lithium manganese iron phosphate (LMP) particles by improving the gradation effect, controlling the particle size distribution, and increasing grinding efficiency. Generally, zirconium balls of different sizes are separated manually using a sieve. However, manual separation is prone to errors, presenting difficulties and inaccuracies. This leads to zirconium ball size deviations in subsequent uses, affecting the grinding effect, the particle size distribution, and ultimately making the final performance of LMP uncontrollable.
[0041] After repeated consideration and verification, the inventors discovered that designing a screening device that uses a conveying mechanism to move mixed zirconium balls within the device's outer casing, with screens mounted on the casing—a first, second, and third screen segment with different mesh sizes—allows for optimal filtration. The first screen segment has a higher filtration accuracy than the second, and the second has a higher filtration accuracy than the third. Broken zirconium balls in the mixture can pass through the first screen segment into a first collection bin, smaller zirconium balls can pass through the second screen segment into a second collection bin, and larger zirconium balls can pass through the third screen segment into a third collection bin. Large foreign objects in the mixture can flow out of the outer casing through the outlet. Compared to manual separation, this method offers higher efficiency and greater accuracy, which is beneficial for ensuring the performance of the finished lithium manganese iron phosphate product.
[0042] In view of this, the inventors designed a screening device and battery production system. The screening device uses a conveying mechanism to move mixed zirconium balls within the housing cavity. The mixed zirconium balls are screened using a screen on the housing, and the multiple screen segments with different mesh sizes allow for step-by-step screening of the mixed zirconium balls. The screened zirconium balls enter different collection bins. Large foreign objects remaining after screening can flow out of the housing through the discharge port. The screening of zirconium balls is relatively easy, increasing the efficiency and accuracy of zirconium ball screening, which is beneficial to ensuring the performance of the finished lithium manganese iron phosphate product.
[0043] The technical solutions of the screening equipment and battery production system provided in the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0044] Reference Figure 1 and Figure 2As shown, the screening device provided in this application embodiment includes a housing 100, a screen 200, a conveying mechanism 300, a first collection bucket 410, a second collection bucket 420, and a third collection bucket 430. The housing 100 has a receiving cavity 110, and a feed inlet 131 communicating with the receiving cavity 110 is provided at the top of the first end 121 of the housing 100, and a discharge outlet 132 communicating with the receiving cavity 110 is provided at the bottom of the second end 122 of the housing 100.
[0045] Schematic illustration: the receiving cavity 110 can be a cylindrical structure, with the first end 121 and the second end 122 being the two ends of the cylindrical structure along its axial direction. The mixed zirconium balls can enter the receiving cavity 110 through the feed inlet 131, as shown... Figure 1 As shown, a feed hopper and a feed channel can be installed on the outer casing 100. One end of the feed channel is connected to the feed hopper, and the other end is connected to the feed inlet 131. This arrangement facilitates the entry of the mixed zirconium balls into the receiving cavity 110. It is understood that the unscreened portion of the mixed zirconium balls can flow out of the receiving cavity 110 of the outer casing 100 through the discharge port 132.
[0046] The screen 200 includes a first screen segment, a second screen segment, and a third screen segment, which are arranged sequentially along the direction from the first end 121 to the second end 122.
[0047] For example, the screen 200 can be a cylindrical structure, the outer surface of which is abutted against the sidewall of the receiving cavity 110. In one possible implementation, the first screen segment, the second screen segment, and the third screen segment are different parts of the screen 200 along the axial direction. In another possible implementation, the first screen segment, the second screen segment, and the third screen segment are each an independent cylindrical structure and are not connected to each other. This is not a unique limitation. In other embodiments, the first screen segment, the second screen segment, and the third screen segment can also be sheet-like structures, and each sheet-like structure covers the bottom of the receiving cavity 110.
[0048] The mesh count of the first screen segment is greater than that of the second screen segment, and the mesh count of the second screen segment is greater than that of the third screen segment. It is understood that the filtration precision of the first screen segment is greater than that of the second screen segment, and the filtration precision of the second screen segment is greater than that of the third screen segment. Those skilled in the art can set the mesh counts of the first, second, and third screen segments according to the size of the broken, small, and large zirconium balls in the mixed zirconium balls; no single limit is imposed here.
[0049] The conveying mechanism 300 is mounted on the housing 100 and is configured to move the material in the receiving cavity 110 from the first end 121 to the second end 122. That is, the conveying mechanism 300 can move the mixed zirconium balls in the receiving cavity 110 from the first end 121 to the second end 122.
[0050] The first collection bucket 410, the second collection bucket 420, and the third collection bucket 430 are detachably installed on the bottom of the outer casing 100. The first collection bucket 410, the second collection bucket 420, and the third collection bucket 430 are respectively connected to the receiving cavity 110. The first collection bucket 410 is opposite to the first screen segment, the second collection bucket 420 is opposite to the second screen segment, and the third collection bucket 430 is opposite to the third screen segment.
[0051] The system comprises three collection bins: a first collection bin 410 for collecting broken zircon balls, a second collection bin 420 for collecting small zircon balls, and a third collection bin 430 for collecting large zircon balls. A first screen section covers the connection between the first collection bin 410 and the receiving cavity 110, allowing broken zircon balls to pass through and enter the first collection bin 410; defective zircon balls are not easily reused. A second screen section covers the connection between the second collection bin 420 and the receiving cavity 110, allowing small zircon balls to pass through and enter the second collection bin 420. A third screen section covers the connection between the third collection bin 430 and the receiving cavity 110, allowing large zircon balls to pass through and enter the third collection bin 430. The first collection bin 410 can be disassembled to process the broken zircon balls inside. The second collection bin 420, after disassembly, requires separating the small zircon balls and some broken zircon balls from its interior, and then reusing the small zircon balls. After the third collection tank 430 is disassembled, the large-sized zirconium balls, some small-sized zirconium balls, and some broken zirconium balls inside need to be separated first. Then, the large-sized and small-sized zirconium balls can be reused separately. Compared with the method of manually separating the mixed zirconium balls directly, this method can improve the separation efficiency and accuracy.
[0052] The screening device provided in this embodiment includes a housing 100, a screen 200, a conveying mechanism 300, a first collection bin 410, a second collection bin 420, and a third collection bin 430. Mixed zirconium balls can enter the receiving cavity 110 of the housing 100 through the feed inlet 131. The conveying mechanism 300 can move the mixed zirconium balls from the first end 121 to the second end 122 of the housing 100. As the mixed zirconium balls move in the receiving cavity 110, they sequentially pass through the first screen segment, the second screen segment, and the third screen segment of the screen 200. The mesh size of the first screen segment is greater than that of the second screen segment, and the mesh size of the second screen segment is greater than that of the third screen segment. Specifically, broken zirconium balls can pass through the first screen segment into the first collection bin 410, small-sized zirconium balls can pass through the second screen segment into the second collection bin 420, and large-sized zirconium balls can pass through the third screen segment into the third collection bin 430. Large foreign objects in the mixed zirconium balls can flow out of the outer shell 100 through the discharge port 132 at the bottom of the second end 122. Screening the mixed zirconium balls with a screening device is more efficient and accurate than manual separation, which helps to ensure the performance of the finished lithium manganese iron phosphate product.
[0053] In one embodiment, such as Figure 1 and Figure 2 As shown, the screening device also includes a fourth collection tank 440, which is detachably installed on the housing 100 and connected to the discharge port 132.
[0054] The fourth collection bin, 440, is for collecting large foreign objects; its capacity can be set as needed and is not limited here. Figure 1 and Figure 2 As shown, the screening device may also include a discharge channel, one end of which is connected to the discharge port 132 and the other end is detachably connected to the fourth collection tank 440. Large foreign objects flowing out through the discharge port 132 can enter the fourth collection tank 440 through the discharge channel.
[0055] Those skilled in the art will understand that the large foreign objects after screening include materials that are stuck together. Using the fourth collection bin 440 to collect the large foreign objects can recycle them and reduce production costs.
[0056] In one embodiment, such as Figure 2 As shown, the conveying mechanism 300 includes a drive member 310 and a conveying rod 320. The conveying rod 320 passes through the receiving cavity 110, and a helical blade 321 is provided on the side wall of the conveying rod 320. The conveying rod 320 extends from a first end 121 to a second end 122. The drive member 310 is mounted on the housing 100 and located outside the receiving cavity 110. The drive member 310 is connected to the end of the conveying rod 320.
[0057] For example, an electric motor, hydraulic motor, or pneumatic motor can be used as the drive unit 310. The drive unit 310 can be mounted on the side wall of the housing 100. One end of the conveying rod 320 extends out of the receiving cavity 110 and is connected to the output shaft of the drive unit 310. Those skilled in the art will understand that when the drive unit 310 is in operation, it can drive the conveying rod 320 to rotate around its own axis, and the helical blades 321 on the conveying rod 320 drive the mixed zirconium balls in the receiving cavity 110 to move along the direction from the first end 121 to the second end 122. The moving speed of the mixed zirconium balls in the receiving cavity 110 can be controlled by setting the rotational speed of the conveying rod 320 and the pitch of the helical blades 321.
[0058] In this embodiment, the above-mentioned conveying mechanism 300 is used, which has high stability and is not prone to phenomena such as ball jamming, so that the mixed zirconium balls can reliably pass through the first screen segment, the second screen segment and the third screen segment.
[0059] In other embodiments, a scraper conveyor may also be used as the conveying mechanism 300, and this is not the only one.
[0060] In one specific embodiment, the screening device further includes a cover 500, which covers the outside of the drive member 310 and is fixed to the housing 100.
[0061] For example, the cover 500 can be mounted on the housing 100 by fastening with fasteners. The cover 500 has a cavity for accommodating the drive unit 310. The cover 500 can block external impurities, ensuring the reliable operation of the drive unit 310, thereby enabling the conveying mechanism 300 to reliably convey the mixed zirconium balls.
[0062] Figure 1 and Figure 2 As shown, the screening device also includes a vibration mechanism 600, which is mounted on the housing 100.
[0063] A vibratory motor can be used as the vibrating mechanism 600, which can be installed on the top of the housing 100 or in other locations. When the conveying mechanism 300 conveys material from the receiving cavity 110, the vibrating mechanism 600 can drive the housing 100 to vibrate synchronously. The number of vibrating mechanisms 600 can be one or more, and there is no specific limitation.
[0064] In this embodiment, the vibration mechanism 600 drives the outer shell 100 and the screen 200 on the outer shell 100 to vibrate, so that the zirconium balls are less likely to get stuck on the screen 200, thereby improving the screening efficiency of the first screen segment, the second screen segment and the third screen segment.
[0065] In one embodiment, such as Figure 1 and Figure 2As shown, the bottom of the outer casing 100 is provided with a first discharge hopper 141, a second discharge hopper 142, and a third discharge hopper 143. The first discharge hopper 141, the second discharge hopper 142, and the third discharge hopper 143 can be set at the bottom of the outer casing 100 by means of welding or fasteners.
[0066] The first discharge hopper 141, the second discharge hopper 142, and the third discharge hopper 143 each have a large diameter end and a small diameter end that are arranged opposite to each other. The large diameter end of the first discharge hopper 141 is opposite to the position of the first screen segment, the large diameter end of the second discharge hopper 142 is opposite to the position of the second screen segment, and the large diameter end of the third discharge hopper 143 is opposite to the position of the third screen segment.
[0067] Specifically, the large-diameter end of the first discharge hopper 141 is located at the top of the first discharge hopper 141, and the first screen segment covers the large-diameter end of the first discharge hopper 141. The large-diameter end of the second discharge hopper 142 is located at the top of the second discharge hopper 142, and the second screen segment covers the large-diameter end of the second discharge hopper 142. The large-diameter end of the third discharge hopper 143 is located at the top of the third discharge hopper 143, and the third screen segment covers the large-diameter end of the third discharge hopper 143. The first discharge hopper 141, the second discharge hopper 142, and the third discharge hopper 143 are all conical structures. The broken zircon balls in the first discharge hopper 141 can flow out from the small-diameter end of the first discharge hopper 141. The small-sized zircon balls in the second discharge hopper 142 can flow out from the small-diameter end of the second discharge hopper 142. The large-sized zircon balls in the third discharge hopper 143 can flow out from the small-diameter end of the third discharge hopper 143.
[0068] The first collection bucket 410 is detachably installed at the small-diameter end of the first discharge hopper 141, the second collection bucket 420 is detachably installed at the small-diameter end of the second discharge hopper 142, and the third collection bucket 430 is detachably installed at the small-diameter end of the third discharge hopper 143. Understandably, crushed zircon balls, after passing through the first screen section, can enter the first collection bucket 410 via the first discharge hopper 141; small-sized zircon balls, after passing through the second screen section, can enter the second collection bucket 420 via the second discharge hopper 142; and large-sized zircon balls, after passing through the third screen section, can enter the third collection bucket 430 via the third discharge hopper 143.
[0069] This structure guides the material screened by the screen 200 through the discharge hopper, making it easy for the collection bucket to collect the screened material.
[0070] like Figure 2As shown, in one possible implementation, there are multiple first discharge hoppers 141 arranged side-by-side along the direction from the first end 121 to the second end 122, and each first discharge hopper 141 is equipped with a first collection bucket 410. The number of first discharge hoppers 141 can be two, three, or four, etc., and is not limited here. The number of first collection buckets 410 is the same as the number of first discharge hoppers 141. It is understood that the larger diameter end of each first discharge hopper 141 is covered by a first screen segment. The mixed zirconium balls in the receiving cavity 110 are screened once by the first screen segment as they pass over each first discharge hopper 141. This arrangement allows for the thorough separation of broken zirconium balls in the mixed zirconium balls, further improving the accuracy of zirconium ball separation.
[0071] like Figure 2 As shown, in one possible implementation, there are multiple second discharge hoppers 142, arranged side-by-side along the direction from the first end 121 to the second end 122, and each second discharge hopper 142 is equipped with a second collection bucket 420. The number of second discharge hoppers 142 can be two, three, or four, etc., and is not limited here. The number of second collection buckets 420 is the same as the number of second discharge hoppers 142. It is understood that the larger diameter end of each second discharge hopper 142 is covered by a second screen segment. The mixed zirconium balls in the receiving cavity 110 are screened once by the second screen segment as they pass over each second discharge hopper 142. This arrangement allows for the thorough separation of small-sized zirconium balls in the mixed zirconium balls, further improving the accuracy of zirconium ball separation.
[0072] like Figure 2 As shown, in one possible implementation, there are multiple third discharge hoppers 143, arranged side-by-side along the direction from the first end 121 to the second end 122, each third discharge hopper 143 being equipped with a third collection bucket 430. The number of third discharge hoppers 143 can be two, three, or four, etc., and is not limited here. The number of third collection buckets 430 is the same as the number of third discharge hoppers 143. It is understood that the larger diameter end of each third discharge hopper 143 is covered by a third screen segment. The mixed zirconium balls in the receiving cavity 110 are screened once by the third screen segment as they pass over each third discharge hopper 143. This arrangement allows for the sufficient separation of large-sized zirconium balls in the mixed zirconium balls, further improving the accuracy of zirconium ball separation.
[0073] like Figure 1 and Figure 2 As shown, the outer casing 100 includes a housing 150 and a door 160. The housing 150 has an internal cavity 110 and an opening communicating with the cavity 110. The door 160 is detachably mounted on the housing 150 to close the opening.
[0074] For example, the door 160 can be fastened to the housing 150 with fasteners. The discharge port 132 of the housing 100 can be opened on the door 160, and the end of the discharge channel away from the fourth collection bucket 440 can be detachably installed on the door 160. When the conveying mechanism 300 includes a drive member 310 and a conveying rod 320, the drive member 310 can be installed on the side wall of the housing 150 away from the door 160, and the end of the conveying rod 320 facing the door 160 is not connected to the door 160, so as to avoid the conveying mechanism 300 obstructing the installation and removal of the door 160.
[0075] With the above setup, workers can open the door 160 to install and remove the screen 200 in the receiving cavity 110, facilitating the maintenance of the screening equipment. Closing the door 160 after maintenance of the screening equipment prevents the zirconium balls in the receiving cavity 110 from leaking out of the rest of the cavity.
[0076] Figure 1 and Figure 2 As shown, the bottom of the housing 100 is provided with a plurality of legs 170, the bottom ends of each leg 170 extending beyond the first collection bucket 410, the second collection bucket 420 and the third collection bucket 430 respectively.
[0077] For example, there can be four legs 170, which are respectively installed at the four corners of the bottom of the housing 100. Each leg 170 can be welded to the housing 100. When the housing 100 includes a shell 150 and a door 160, each leg 170 is connected to the shell 150. The housing 100 can be stably placed on the ground by the multiple legs 170, and the bottom ends of the first collection bucket 410, the second collection bucket 420, and the third collection bucket 430 are all spaced from the ground. In this embodiment, there is no limitation on the height of the bottom ends of the legs 170 beyond the first collection bucket 410, the second collection bucket 420, and the third collection bucket 430; those skilled in the art can set it as needed.
[0078] The above arrangement not only ensures the stability of the screening equipment, but also makes the first collection bucket 410, the second collection bucket 420 and the third collection bucket 430 higher than the ground, which facilitates the installation and disassembly of the first collection bucket 410, the second collection bucket 420 and the third collection bucket 430.
[0079] This application also provides a battery production system, including the screening equipment described above.
[0080] The battery production system provided in this application, by employing the aforementioned screening equipment, allows for more accurate and rapid separation of mixed zirconium balls, and the separation is relatively easy. The zirconium balls are less likely to exhibit size deviations during subsequent use, which helps to ensure the performance of the finished lithium manganese iron phosphate product.
[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A screening device, characterized in that, include: The outer shell (100) has a receiving cavity (110). The top of the first end (121) of the outer shell (100) is provided with a feed port (131) communicating with the receiving cavity (110), and the bottom of the second end (122) of the outer shell (100) is provided with a discharge port (132) communicating with the receiving cavity (110). The screen (200) includes a first screen segment, a second screen segment, and a third screen segment, which are arranged sequentially along the direction from the first end (121) to the second end (122); the mesh count of the first screen segment is greater than that of the second screen segment, and the mesh count of the second screen segment is greater than that of the third screen segment. A conveying mechanism (300) is mounted on the housing (100) and is configured to move the material in the receiving cavity (110) from the first end (121) to the second end (122). The first collection bucket (410), the second collection bucket (420), and the third collection bucket (430) are detachably installed on the bottom of the outer casing (100). The first collection bucket (410), the second collection bucket (420), and the third collection bucket (430) are respectively connected to the receiving cavity (110). The first collection bucket (410) is opposite to the first screen segment, the second collection bucket (420) is opposite to the second screen segment, and the third collection bucket (430) is opposite to the third screen segment.
2. The screening device according to claim 1, characterized in that, The screening device also includes a fourth collection bucket (440), which is detachably installed on the outer shell (100) and connected to the discharge port (132).
3. The screening device according to claim 1, characterized in that, The conveying mechanism (300) includes a drive member (310) and a conveying rod (320). The conveying rod (320) passes through the receiving cavity (110). A spiral blade (321) is provided on the side wall of the conveying rod (320). The conveying rod (320) extends from the first end (121) to the second end (122). The drive member (310) is mounted on the housing (100) and located outside the receiving cavity (110). The drive member (310) is connected to the end of the conveying rod (320).
4. The screening device according to claim 3, characterized in that, The screening device also includes a cover (500), which covers the outside of the drive unit (310) and is fixed to the outer shell (100).
5. The screening device according to claim 1, characterized in that, The screening device also includes a vibration mechanism (600) mounted on the housing (100).
6. The screening device according to claim 1, characterized in that, The bottom of the outer shell (100) is provided with a first discharge hopper (141), a second discharge hopper (142) and a third discharge hopper (143). The first discharge hopper (141), the second discharge hopper (142), and the third discharge hopper (143) each have a large diameter end and a small diameter end that are arranged opposite to each other. The large diameter end of the first discharge hopper (141) is opposite to the position of the first screen segment, the large diameter end of the second discharge hopper (142) is opposite to the position of the second screen segment, and the large diameter end of the third discharge hopper (143) is opposite to the position of the third screen segment. The first collection bucket (410) is detachably installed at the small diameter end of the first discharge hopper (141), the second collection bucket (420) is detachably installed at the small diameter end of the second discharge hopper (142), and the third collection bucket (430) is detachably installed at the small diameter end of the third discharge hopper (143).
7. The screening device according to claim 6, characterized in that, There are multiple first discharge hoppers (141), which are arranged side by side along the direction from the first end (121) to the second end (122), and each first discharge hopper (141) is equipped with a first collection bucket (410); and / or, The number of second discharge hoppers (142) is multiple, and the multiple second discharge hoppers (142) are arranged side by side along the direction from the first end (121) to the second end (122), and each second discharge hopper (142) is equipped with a second collection bucket (420); and / or, There are multiple third discharge hoppers (143), and multiple third discharge hoppers (143) are arranged side by side along the direction from the first end (121) to the second end (122). Each third discharge hopper (143) is equipped with a third collection bucket (430).
8. The screening device according to claim 1, characterized in that, The outer casing (100) includes a housing (150) and a door (160), the housing (150) has the receiving cavity (110) formed inside, and the housing (150) has an opening communicating with the receiving cavity (110); The door (160) is detachably mounted on the housing (150) to close the opening.
9. The screening device according to any one of claims 1-8, characterized in that, The bottom of the outer casing (100) is provided with a plurality of legs (170), the bottom of each of the legs (170) extending beyond the first collection bucket (410), the second collection bucket (420) and the third collection bucket (430).
10. A battery production system, characterized in that, Includes the screening device as described in any one of claims 1-9.